History Main / AdaptationInducedPlotHole

19th Mar '17 12:44:27 PM Pamina
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* In most literary versions of ''Literature/BeautyAndTheBeast'', the land where Beauty lives isn't the land ruled by the Beast/Prince's family, nor is the enchanted castle his own castle - he was only placed there for his safety for the duration of the curse, and in the end he and Beauty are transported to his homeland. In [[Disney/BeautyAndTheBeast the Disney version]], the enchanted castle is his own, so the audience is left to wonder why neither Belle nor any of her neighbors know that the castle exists or that their prince was turned into a beast. The [[Film/BeautyAndTheBeast2017 2017 live-action remake]] fills this plot hole in a new way, by having the curse make the whole kingdom forget the existence of the castle and everyone inside it.
12th Mar '17 4:53:33 PM NightShade96
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to:

[[index]]
* AdaptationInducedPlotHole/AnimeAndManga
* [[AdaptationInducedPlotHole/LiveActionFilms Films — Live-Action]]
* AdaptationInducedPlotHole/LiveActionTV
[[/index]]



[[folder:Anime & Manga]]
* ''Manga/OnePiece'' :
** In a mini-arc about Coby and Helmeppo, the two are said to have sailed over Reverse Mountain to Marine Headquarters with Garp. Later on, it is revealed that Marine ships can cross the Calm Belt with special Seastone equipment, and the newspaper photo is hand waved away as a deception for the press.
** The Warship Island {{Filler}} Arc makes two: first when Zoro easily cuts through steel chains, despite it being a plot-point in the canon Alabasta arc that he couldn't yet cut steel. Second is that all the Strawhats meet Ryuji, a dragon, which makes Zoro's comment to Ryuma in the Thriller Bark arc that he doesn't believe in dragons seem [[FlatEarthAtheist completely stupid]].
*** Later in the manga, the crew meets a dragon for the first time, with all of them expressing surprise as they have never seen one before. Whoops.
** At the end of the Warship Island Arc, Nami outright murders the DragonInChief by [[SuperDrowningSkills knocking him into the sea]]. Cut to the Dressrosa Arc where Nami considers the idea of tossing a fruit user into the ocean to be too cruel.
** Another one was when a {{filler}} episode had Chopper use two Rumble Balls a short time apart without consequence, when it was later shown taking more than one within six hours has dangerous consequences; taking two should have made him lose control of his transformation. The filler arc was made before that particular weakness was revealed in the manga.
** In the Impel Down arc, the scene in the control room was extended and added Bon Clay destroying the controls for the Gates of Justice. It wouldn't be big a deal if Blackbeard were not still deep in the prison, which means that Bon Clay's interference should have prevented Blackbeard from escaping the prison and arriving at Marineford.
** During the Reunion Arc (the first arc to take place after the two-year TimeSkip), the anime had Chopper chew a Rumble Ball before transforming into the forms that normally require it, just short of Monster Point. This contradicts a later revelation that, thanks to his two years of training, he now only needs a Rumble Ball for his Monster Point form, and in fact, the original manga scene didn't have him take any Rumble Balls at all.
** In Dressrosa, when Doflamingo is about to offer Law a SadisticChoice at gunpoint, the anime has him [[spoiler:address Law by his full name, "Trafalgar D. Water Law". This is despite the fact that Law never told Mingo his full name, only saying that he's a "D" like Luffy...something that Doffy did not even know at all until Law mentioned it. Doflamingo should have had no way of knowing about the "Water" in his name]].
* ''Manga/{{Naruto}}'':
** Naruto claims to have only read 10 pages of Jiraiya's latest novel, Make Out Tactics, in the anime as an extra joke that he was lying when he distracted Kakashi by pretending to spoil the ending. However, later on [[spoiler:when he's trying to decode a message Jiraiya left behind while dying]], it's revealed that Jiraiya asked him to proofread his books, and he at least obliged to the degree he knows Jiraiya's handwriting [[spoiler:well enough to notice that he disguised a "ta" katakana (タ) as a 9]]. Perhaps he lied about lying he'd read the book, just to annoy Kakashi.
** A {{filler}} episode expanded Suigetsu and Sasuke's trip to get Zabuza's sword from the Land of Wave, and it's mentioned that Inari and Tazuna would be working on a job in the Cloud Village for the next year. However, in the manga they actually ended up making guest reappearances in a job in ''the Leaf Village'' ([[spoiler:helping rebuild after the Pain invasion]]) what was at most a couple months later.
** A smaller one is how the anime gives the Fireball Jutsu to various characters that aren't members of the Uchiha clan or who are officially unable to perform Fire techniques.
** During Itachi's fight against Naruto and Kakashi in Shippuden, it is stated that Itachi's Sharingan is not affected by the Hidden Mist technique. This contradicts what happened in the Land of Waves arc, where Kakashi's Sharingan was rendered useless against Zabuza's technique.
** {{Omake}} should probably not be considered canon in general, but an early ''Shippuden'' omake has a ''really'' noticeable one where Deidara casually asks Kisame what Itachi is like as if he's never met him, even though Deidara was (forcibly) recruited into Akatsuki by Itachi in the first place and Deidara had spent the last several years trying to find a way to ''kill'' Itachi.
** One {{Filler}} episode had Hinata learn a unique, powerful technique featuring myriad pinpoint-precision chakra laser beams. Later in the manga, a major villain is able to {{curb stomp|Battle}} her using his powerful gravity blast attack--she spends the fight repeatedly charging at him while trying to land a physical hit, which is ''hopeless''. The chakra lasers would have obviously been a much better bet.
** In the anime [[spoiler:Obito]] is able to suck Fu into his PocketDimension without touching him, while in the manga it was not clear if he touched him or not and it was later ''explicitly stated'' to require physical contact, which was exactly why [[spoiler:Minato was able to beat him.]]
* ''Manga/DeathNote'':
** The anime adaptation omitted several scenes from the manga, which while usually not problematic, have led to plotholes. In the manga, it's explained that [[spoiler: SPK member Ill Ratt is actually a spy for Mello, which is how the mafia learned the SPK's names and were able to kill them.]] This is not explained in the anime, but in the ''Relight 2'' special, [[spoiler: the mafia are cut, and Light blackmails the president to send their names to Kiyomi Takada. In this version, Light's meetings with her and Teru Mikami are moved to earlier than occurred in the anime, and ''they'' kill the SPK.]]
** However, [[VoodooShark while fixing one plothole, said special creates another]]: as [[spoiler: the mafia are cut, Soichiro making the trade for Shinigami Eyes and subsequent death]] is omitted in the process, leaving plotholes regarding [[spoiler: Soichiro's absence]] as well as how Light was [[spoiler: able to acquire Mello's true name.]]
** Also in ''Relight'', they have one scene where Light says to Ryuk that talking with him would be impossible due to his room being bugged by L, but two scenes later they are shown freely talking without any mention of said cameras being removed.
* ''Manga/{{Bleach}}'':
** In both anime and canon, when Ichigo first meets Renji, Renji expresses surprise over the size of Ichigo's zanpakutou. Ichigo admits he noticed it was large compared to Rukia's but, not having met any other Shinigami until now, he had nothing to compare it to. The anime creates the plot hole because it had [[{{filler}} inserted]] ShipTease scenes in Episodes 8-9 where Ichigo fights another Shinigami over Rukia and therefore gets to see another Shinigami's weapon up close. These scenes do not exist in the canon.
** When the anime covers Chad's backstory, it bizarrely changes the canon story. In the manga, Chad's grandfather lectured him against being a bully so Chad obeyed his grandfather and vowed to never fight for himself. Ichigo realised Chad could fight for others so the two vowed to fight to protect the other; Chad therefore only ever fights to protect others. In the anime, Chad ignores his grandfather until his grandfather is beaten almost to death by Chad's victims. Horrified, Chad vows never to fight again. Since the anime has Chad fighting to protect others, just as the manga set him up to do, Chad's anime behaviour completely contradicts the anime version of his vow.
* In ''Manga/YuYuHakusho'', the group uses Yanagisawa's Copy power to copy Kaito and use his video game skills to win a round against the Game Master. In the anime, the group uses Yusuke (who is otherwise not very good at video games) to win a fighting game, which makes their desperation to win when Kurama comes up seem strange; in the manga, only Yusuke and the non-gamer Hiei were left, but in the anime, they could have utilized Yanagisawa's power.
* In the ''Manga/FistOfTheNorthStar'' TV series, during an episode where Jagi terrorizes a village while pretending to be Kenshiro, one of the villagers remarks that Kenshiro was the one who defeated "Devil's Rebirth and the Fang Clan". However, not many people outside Jackal and his gang were even aware of Devil's existence. In the original manga, the villager simply said that Kenshiro defeated Jackal instead. This change was likely done due to the fact that Jackal was an independent villain in the manga, whereas in the TV series he was simply a lackey of Shin.
* ''Anime/CodeGeass'': In the final volume of the manga, the removal of some characters and plotlines led to several {{Out Of Character Moment}}s. For example, Kaguya, who is Zero's biggest fangirl and a lot more cunning, not to mention absent during the meeting, is essentially the engineer behind the Black Knights' ''coup d'état'' against him and the one who smooths things over after he escapes; in effect, she takes up the roles of Diethard (who isn't in the manga) and Ohgi (whose motivation to betray Zero came from Viletta's excised storyline).
* ''Manga/InuYasha'':
** The anime tries to explain that shikon shards are needed for Kagome and Inuyasha to travel through the well. This was never the case in the manga, and Kagome spends quite a while without any at all but still travels through the well, so it stops being a requirement in the anime without explanation.
** Also, many plot points center around Kagome and Kikyo looking alike (Kagome being Kikyo's reincarnation). In the anime, nearly ''everything'' about them looks different- eye shape; hair color, texture, style, and length; skin tone; and even height- so makes no sense that people would confuse them.
* ''Franchise/DragonBall'':
** In a filler episode of the ''Manga/DragonBall'' animé, Goku meets Dr. Flappe, a professor who lives not far from Jingle Village and was pressured by the Red Ribbon Army into creating Android 8. No such character existed in the manga, which caused some problems when several years later (when the animé became ''Anime/DragonBallZ''), [[RememberTheNewGuy Dr. Gero]] is introduced as the creator of the Red Ribbon Androids. ''[[AllThereInTheManual Daizenshuu 7]]'' addresses this and notes Flappe might have been Gero's colleague during Android 8's creation.
** The ship Goku uses to get to Namek is a modified version of the ship he was sent to Earth in, which Piccolo destroyed in a {{filler}} episode during the Saiyan Saga. However, the latter issue is no longer present in ''Anime/DragonBallKai''.
** Also in the ''Dragon Ball Z'' anime, the line from the manga is cut where Zarbon tells Vegeta that Frieza can transform, leaving a bit of a headscratching moment when Vegeta references it later on. ''Kai'' does not fix this.
** The anime shows Nappa throwing off his armor, which is apparently a massive and heavy object. The Frieza Saga later reveals that the armor is not only very elastic, but also extremely light, so Nappa's armor being heavy makes no sense.
** Animé filler shows the character Dabura becoming good. Namek's Dragon Balls are then used to wish back the people who are not evil. Dabura should logically have been revived, yet he doesn't appear later as this doesn't happen in the manga.
** The Garlic Jr. Saga is basically one big adaptation induced plot hole. Neither it, nor [[NonSerialMovie any of the movies]], occur in the manga. It directly follows the movie ''[[Anime/DragonBallZDeadZone Dead Zone]]'', which is supposed to take place before the start of ''Dragon Ball Z''. If ''Dead Zone'' was canon, then there's no reason Krillin and the others don't know about Gohan in the first episode of ''Dragon Ball Z'' and are surprised when he unleashes his power on Raditz.
** In one filler episode of ''Dragon Ball'', Master Roshi tells a story of the creation of the Dragon Balls, which not only contradicts the later canon (which is forgivable because he introduces it as a story he heard, not necessarily claiming it as the truth) but is also out of place because he didn't know what Dragon Balls were in the first place.
** Similarly, an episode of ''Z'' has King Kai tell the story of how the Saiyans were wiped out, and attributes it to the "Kami-sama" of their galaxy summoning a meteor to strike Planet Vegeta in order to rid the galaxy of the Saiyans and their evil ways. As it turns out, this is far from the truth, as Frieza was the one who destroyed the planet, and for less than noble reasons.
** One of the most egregious examples is the filler scenes after everybody on Namek has been transported to Earth. Vegeta starts acting like a dick, which is typical of him, but behaves in a way completely contradictory of his character motivations. He brags about Goku and Frieza's potential deaths [[EvilPowerVacuum making him the strongest by default]], antagonizes the Namekians, and then claims in a flashback during his time working for Frieza that he knew he blew up his home planet all along, even though he was shocked when Dodoria told him this and said he would have revolted if he knew. And then he laughs at Gohan when the news breaks of Goku's "death" and pummels him in a fight before flying off. [[RetCon And then in the next episode he's standing under a tree as if nothing happened, Gohan has no scratches or bruises, and he suggests a method of wishing Goku back to life so he can find out how to become a Super Saiyan and defeat him]].
** ''Dragon Ball Kai'' fixes some plotholes (like the Vegeta-dickery from the previous point), but creates some new ones thanks to the fact that it retains some filler while excising others. For example, the Buu Saga retained a scene in Hell where the previous villains watch the final battle on a giant crystal ball. Two of the Oni present recognize Goku as "that fellow who fell off Snake Way a while back", referring to a Saiyan Saga filler episode that didn't make the cut.
*** ''Anime/DragonBallZResurrectionF'' messes up this previous scene in another way by saying Frieza spent 15 years in Hell being put through a SugarBowl punishment (suspended from a tree while fairies sing happy songs), while in the filler he was free to move around. Of course, the entire depiction of Hell as a somewhat pleasant park originated in filler in the first place...
** When Vegeta is about to self-destruct himself to destroy Majin Buu, he asked Piccolo where he would be in the afterlife. Piccolo retorts that since Vegeta has been a ruthless Saiyan for most of his life, he would be sent to hell where he would not only lose his body, but his soul would also be purified until he is reborn without any memories. While it makes sense in the manga as we never saw what Hell looks like at the time, it doesn't explain why many villains such as Frieza, Cell and others in filler, movies and ''Anime/DragonBallGT'' keep their bodies and no-one even lifts a finger in an attempt to purify them.
* {{Plot Hole}}s seriously tarnish what is an otherwise excellent series in ''Flights of Fancy'', the second season of the ''Manga/AhMyGoddess'' TV series-- Skuld is seen using her stamp power in one late episode, but there's no episode in which we see it developed, and Chihiro, and her shop, Whirl Wind, show up, but Chihiro is never formally introduced, and the fact that she wanted to start a shop is never even mentioned.
** ''Flights of Fancy'' '''also inverts''' this Trope: Keiichi and Belldandy are an OfficialCouple by Episode 24 of ''Manga/AhMyGoddess''; at the end of the Lord of Terror arc, they share a CrowningMomentOfHeartwarming when they confess their love for each other. In the 24th (and last) episode of ''Flights of Fancy'', Keiichi spends the entire episode trying to confess his love for Belldandy, but CannotSpitItOut-- even though Belldandy flat-out says she's ready for him to say it!
* ''Manga/{{Hellsing}}'': In his fight with Alucard, Luke Valentine is shown to have a strong HealingFactor, surviving after getting shot in the head by Alucard's specialized gun. However he is unable to regenerate his legs. In the manga there was no headshot. He was instead shot in the stomach by the Casull, while his legs were shot off by Jackal. In the OVA, Jackal was the cause of all three wounds. This was rectified in the Blu-ray re-release, where Luke's initial injuries are now caused by the Casull.
* In ''Manga/RanmaOneHalf'', [[GenderBender Ranma (as a girl)]] competes with [[WholesomeCrossdresser Tsubasa]] (whose disguise had yet to be revealed) in who can sell more food to the boys at school, but since all of them knew that Ranma wasn't a real girl they didn't buy any from her until she started wearing [[PlayboyBunny a]] [[PaperThinDisguise disguise.]] However, in the anime Ranma's curse wasn't revealed by this point, so the boys bought them ''only'' from the disguised Ranma for no apparent reason.
* ''Manga/SaintSeiya'' had one when they showed Scorpio Milo killing Shun's Master. Then the manga came out and it was [[spoiler: Pisces Aphrodite]]. A number of {{Ass Pull}}s had to be done to fix the problem of Shun swearing revenge against someone who didn't apply the coup de grace against his teacher.
* ''Manga/DoctorSlump'' had a story where Akane dressed up as Miss Yamabuki to play some pranks on Senbei. This took advantage of [[OnlySixFaces their faces looking the same]]. The second anime made their faces more different (And gave them [[AdaptationDyeJob different hair colors]]), yet they adapted this story even though it didn't make sense any more.
* ''Anime/Berserk1997'' ends with Guts facing certain doom, but then skips to him still alive in TheStinger (looking as he did in the ActionPrologue). As Skull Knight, the guy who saved him in the manga, was AdaptedOut, this just seems blatantly nonsensical.
* ''Manga/ElfenLied'':
** The anime begins with a [[RRatedOpening violent]] demonstration of Lucy's [[ImmuneToBullets immunity to bullets]], despite the fact that the guards are supposed to have special bullets designed to penetrate her [[PsychicPowers vectors]]. In the manga, she grabs a HumanShield before any of the heavily armed guards can get a shot off.
** The anime also gave Lucy only four vectors, as opposed to the seemingly unlimited number she had in the original, while allowing her to do things she did in the manga that would be impossible with only four vectors, such as simultaneously holding a few hundred bullets in mid-air.
* ''Manga/YuGiOh'' had quite a few examples in the anime, particularly with the size of the dueling arenas in Duelist Kingdom.
** Jonouchi discovering Mai's perfume-trick makes less sense in the anime. In the manga, they were sitting relatively close to each other, so it would make sense for Jonouchi to pick up on the scents. In the anime, there's quite a distance between them, not to mention that they're outside, so it should be impossible for Jonouchi to smell the perfume.
** In the manga, Kaiba's dueling rings were exclusive to himself and his company, and Pegasus was only able to produce the smaller Battle Boxes, creating a need for him to want Kaiba's technology to make a lifelike, real-size copy of his wife. In the anime, Pegasus's dueling rings were nearly identical to Kaiba's, making one wonder why he needed Kaiba's technology if he already had an equivalent. The dub fixes this by having him need both the technology and the Millennium Items to bring his wife back to life, which he could only get through beating Yugi and acquiring [=KaibaCorp=].
** Some of the Millennium Items are given one-time-only powers that they never had in the manga, such as the Puzzle being used to swap the Bakuras' souls, though this is phased out post-Duelist Kingdom.
* The anime adaptation of the video game ''VideoGame/TalesOfTheAbyss'' suffers from its CompressedAdaptation status. Sometimes it's only [[AdaptationExplanationExtrication Adaptation Explanation Extrications]], but other times are full blown plot holes. The most obvious example is [[spoiler:Ion's death]], which it's explained in the game, but in the anime comes practically out of nowhere and without any tangible reason.
* ''Manga/FullmetalAlchemist'':
** ''Brotherhood'' has a pretty noticeable plothole. Roughly about 2/5ths through the manga, all hell breaks loose and sees Alphonse, Mustang's group, Barry the Chopper, and Ling and Lan Fan get caught up in a battle with the Homunculi. Ling and Lan Fan fight Gluttony and Ling manages to cut Gluttony in half. Gluttony immediately heals up from this, which causes Ling and Lan Fan to learn about the Homunculi's regenerative abilities. When Ed returns from Xerxes later on and reveals his plan to capture a Homunculus, Ling and Lan Fan want to get in on the action because of their knowledge of the Homunculi's regeneration since it relates to their own quest to find immortality. In ''Brotherhood'', the two's fight with Gluttony is completely cut, but they still want to join on Ed and Al's plan to capture a Homunculus for the same reasons, making one wonder how they know about the Homunculi and their power to regenerate.
** In the [[Anime/FullmetalAlchemist first anime]], Greed's plan to bind his soul to an inanimate object was a failure before it even began, since homunculi in the first series had no souls to begin with. He was aware he had no soul, too.
* Periodically in ''Anime/SailorMoon:''
** At the end of the first act of the [[Manga/SailorMoon manga]], InnocentBystander Naru is insistent that morning that she and her mother were attacked by "robbers" the previous night (which fits somewhat with the fact that her mother was found taped up and locked in the basement of her jewelry store), who were stopped by MagicalGirlWarrior Sailor Moon (she has mercifully [[TraumaInducedAmnesia forgotten]] they were a shapeshifting monster). In first episode of TheNineties anime, rather than operating under a WeirdnessCensor, Naru believes the full incident was AllJustADream, which raises questions as to whether she remembers that the "dream" monster told her that her mother was BoundAndGagged [[WhatHappenedToTheMouse in the basement]].
** In the ''Sailor Moon S'' season, the then-currently condescending Outer Senshi have an oddly polite conversation with Tuxedo Mask (despite him being one of the weakest senshi) and refer to him respectfully as Endymion, despite no other indications that they know much about the existing cast (barring Pluto). This was lifted almost directly from the manga, where the Outer Senshi are implied to already know who most of the senshi are/were but are avoiding working with them out of a sense of duty and penance rather than dislike and skepticism.
** The anime never explains how Mamoru is able to keep Chibi-Usa alive at the end of ''Sailor Moon S'' when her heart crystal is stolen. This is a plot point that is lifted directly from the manga, but by this point the story had already established that he has the power to pass on energy to another person and even heal wounds several times. The anime never establishes him as possessing such a power, but it acts as though he's been able to do this all along.
** The anime short film ''Ami's First Love'' (accompanying the ''Super S'' movie) is a straight up adaptation of one of the Exam Battle short stories in the manga, which is about Ami getting a love letter from a secret admirer and freaking out so much she breaks out into hives. The problem? In the anime's timeline, Ami has already had a brief relationship with a CanonForeigner fellow student, Urawa Ryou (thus this isn't even her ''first'' love) and she was shown handling his shy affection for her with grace and maturity. The short film also has the problem of showing Ami using an attack that she only used in the manga without explanation of where she got it. The films already create so many continuity problems that they're generally considered non-canon anyway, but it's still jarring when a story from the manga is adapted straight into a timeline that proceeded so differently as to contradict it.
** A minor issue is with Uranus being mistaken as a boy. In the original manga, she is intentionally disguising herself as a male student to investigate the Mugen academy. She even poses as a new Tuxedo Kamen in one scene. Sailor Moon only realizes that she is a girl by recognizing her as Sailor Uranus. In the anime, she is simply a tomboy. It never gets explained exactly why Minako and Usagi initially mistake her as a boy, or even why Minako realizes that she is a girl in the end.
*** The same episode where the girls mistake Uranus as a boy also has Neptune deny that they are a couple, even though it was just as obvious.
** A minor plot hole happens in ''[=SuperS=]'' in regards to the Amazons Quartet. At the very end of the series, they make a comment about possibly meeting Chibimoon again, and it is also never explained why they're named after goddesses/celestial bodies (a ThemeNaming pattern common for the Solar System Sailor Senshi) rather than minerals or metals (a ThemeNaming pattern common for the antagonists) -- the implication is that they used to live in the asteroid belt, which only raises questions as to their true origins. In the manga, the four of them were actually dormant Sailor Senshi meant to be Chibimoon's guardians, who were forcibly awakened before their time and brainwashed into working for Nehellenia; their names come from the four asteroids that grant them their powers. Because the anime deviated from the manga in handling these characters, and ended up having Chibimoon herself PutOnABus following the first arc of ''Stars'', this development never happened in this version, leaving the hints that there was more to the Quartet with no outcome.
** In the ''[=Sailor StarS=]'' season, many characters remark that Chibi Chibi looks exactly like Usagi. Not just like her little sister, more like her daughter. Well, in the manga, this did make sense as Chibi Chibi is actually Sailor Cosmos, a future form of Sailor Moon herself, and thus they are essentially the same person. In the anime, however, her origin is completely independent of Sailor Moon entirely and it's never explained why they look the same.
** In episode six of ''Anime/SailorMoonCrystal'' Usagi freaks out that she can't transform in front of Tuxedo Mask and reveal she's Sailor Moon, a few minutes after telling him she feels powerless as a leader. She's then surprised to learn he already knows about her secret identity. In the manga, he tells her he knows before she starts worrying about her inadequacies as a Guardian, so her reaction makes perfect sense. (Out of context, her words could be interpreted in a more general sense since she doesn't specifically mention the Sailor Guardians but talking about having to protect everyone while there's clearly a fight going on not too far away doesn't leave much room for interpretation.)
*** Near the end of the same episode, Tuxedo Mask carries an unconscious Sailor Moon to his home so she can rest after overusing her powers. When she subsequently wakes up in Mamoru's room, she is detransformed, with no explanation why this happened. In the manga, she detransforms at will upon waking up, and in general it is shown that simply being unconscious doesn't make a Guardian spontaneously revert to the civilian form, so it's unclear why her transformation was undone in this case.
** Another episode of ''Crystal'' recreated the scene from the manga which reveals that Mamoru survived being stabbed by Sailor Moon because the stones the Shitennou transformed into [[PocketProtector blocked the blade]], preventing him from receiving a fatal wound. In the manga, the possessed Mamoru was explicitly shown carrying the Kunzite stone after the Shitennou's human bodies decayed. In ''Crystal'', however, the Shitennou didn't die until shortly before Mamoru was stabbed, which happened in a different place, so there's no explanation why he had their stones at that moment.
** Another problem that occurs with the alterations to the Shitennou's plotline is occurs when a brainwashed Mamoru brainwashes Motoki to hold off the Guardians. Any viewer who hasn't read the manga will likely be scratching their heads as to why he doesn't just use the Shitennou, who have been proven to be more than a match for the girls before.
* The first episodes of ''Manga/DetectiveConan'' anime removed several references to [[TheSyndicate Dark Organization]] and its members that existed in the manga, causing two examples of this trope:
** In ''Shinkansen Bomb'' case (animated as episode 4), originally it was the ThoseTwoBadGuys who gave Shinichi that fateful FountainOfYouth that planted a bomb on the train, and during the case Conan (i.e. the alias Shinichi took after being shrunk) overheard their {{code name}}s: Gin and Vodka. In the anime the criminals were no longer members members of Dark Organization but some random criminals, so this left a plot hole in the anime that was never adequately resolved-- when these names were needed in the third season, Conan just mentioned that without any explanation on how he knew that in the first place.
** ''The Billion-yen Robbery Case'' involves the death of [[spoiler:Akemi Miyano]], a Dark Organization {{mook|s}}, in the hands of the same Gin and Vodka. In the anime (Episode 12), the Dark Organization aspects of this case were completely removed-- the said {{mook|s}} did not die, and she wasn't injured by Gin and Vodka either. This caused a case of SchrodingersCast as the said mook's ''death under the hands of the Dark Organization'' is essential to the plot, and she became the focal point of many, many backstories. An anime original episode was thus made right before one of those important backstories unravel, where the said mook was killed by Gin.
* ''VisualNovel/LittleBusters'': In the VisualNovel, Kud's reluctance to return to Tevua stemmed partially from her relationship with Riki and partially from her fear of the dangerous conditions there, and only lasted for a couple of scenes. The anime drew this out, instead using this plot point to show Kud's backstory and how she felt unable to become a cosmonaut like her mother and was ashamed of herself, and claiming that she came to Japan to 'escape' from this. Nicely dramatic...but then why does Kud speak fluent Japanese? In the visual novel, it's made clear that Kud was always meant to go to high school in Japan and so had been taught Japanese as her dual first language with Russian. But in the anime, her moving to Japan was treated as a sudden whim outside of her mother's knowledge.
* A few exist in ''Anime/{{Robotech}}'' thanks to its origins as a CutAndPasteTranslation:
** Why does Dana Sterling have green hair as a baby but is a blonde by the time she grows up? Dye job? Or because she was originally two different characters (Komilia Maria Fallyna Jenius in ''Anime/SuperDimensionFortressMacross'' and Jeanne Francaix in ''Anime/SuperDimensionCavalrySouthernCross'')?
** Why, when humanity come across Zor Prime, do they act surprised when they analyze him and find out he's basically human (never mind the shoehorned-in "and not just a micronized [[Anime/SuperDimensionFortressMacross Zentraedi]]" statement pointing out their alleged familiarity with HumanAliens - surely the races are so similar as to be practically the same species, as they can interbreed)? Maybe the fact that the original ''Anime/SuperDimensionCavalrySouthernCross'' character actually was a (brainwashed) human, Seifriet Weisse.
** Why cities such as New York (complete with famous RealLife theatres) exist in ''The New Generation'' series when [[spoiler: the Earth got nuked by the Zentraedi and they barely managed to rebuild before being invaded again by the Invid]]? Maybe because there were no Zentraedi in ''Anime/GenesisClimberMospeada'' to begin with.
* In the manga adaptation of ''Anime/PuellaMagiMadokaMagica'', due to [[CompressedAdaptation its nature]], they had to cut out some scenes from the final stretch of the anime. One of those scenes was a MeaningfulFuneral, which had its purpose be that [[spoiler:Sayaka's body, which was left in the apartment by Kyouko, was found]]. Cutting out that scene just suggests that [[OffscreenInertia the corpse is still rotting in the apartment]].
* Shinji's reluctance to pilot the Eva in the ''Anime/RebuildOfEvangelion'' series makes far, far less sense than in the original ''Anime/NeonGenesisEvangelion'', in which he made sure to ask what would happen if he were gone, and Misato assured him Rei would replace him. In 1.0, she egged him into leaving despite knowing full well the fate of humanity rests on his shoulders, and in 1.11, he realizes only seconds before starting the final decisive battle of the film that other people’s lives depend on him, despite having ''seen'' what an Angel can do.
* The anime of ''VisualNovel/UminekoWhenTheyCry'' contains so many of these (either by misinterpreting scenes from the visual novel, going for RuleOfCool or because of CompressedAdaptation) that the mystery becomes impossible to solve on one's own:
** The first two are in episode 5 alone, where Battler shoots a bullet at the portrait [[spoiler:even though the gun he picked up is supposed to be unloaded]] and sees gold butterflies (while in the VN Beatrice appears in person) [[spoiler:which are supposed to indicate we are watching a fantasy scene. So the detective ''shouldn't'' see them, the only exception being the end of Episode 2, where Battler had surrendered]].
** Another one is in episode 10, where [[spoiler:Shannon's corpse is found with the stake in her forehead; while in the VN the fact that the stake is ''beside'' her corpse is an important clue that she committed suicide in Episode 2 and 4.]]
** Yet another is how [[spoiler:in the anime, Shannon and Kanon would appear together in front of other people, such as the cousins, in scenes that weren't fantasy. In the visual novel, the fact that Shannon and Kanon never appear together in front of the other members of the family outside fantasy scenes is meant to be foreshadowing for how they're actually one and the same]].
** And of course, the entire first half of the Episode 4 Tea Party is axed, along with several important bits of information.
* ''Anime/BlazBlueAlterMemory'' has [[spoiler:Ragna leave a nearly dead Hazama alive to go find Rachel and Noel. While the game establishes this by saying that Hazama has a lifelink active (which requires one to kill both members of the lifelink at the same time in order to have them die), the anime doesn't bother stating it and makes Ragna look like an idiot.]]
* In ''Manga/ICantUnderstandWhatMyHusbandIsSaying'', one of the main characters is shown to be a smoker in the manga, but not the anime. This becomes a problem when she's told that she needs to quit in episode 6.
* At the end of the ''Manga/GunslingerGirl'' anime [[spoiler:Angelica]] dies. This is all perfectly fine since it's the last episode, but four years later they created a new anime called ''Gunslinger Girl Il Teatrino''. It's closer to the manga and [[spoiler:Angelica]] was revived, as she doesn't die until halfway through the manga. The problem is ''Teatrino'' tries to act as a sequel to the first anime, and her [[spoiler:falling asleep instead of dying]] ruins the impact of the original ending.
* The first episode of ''Manga/WanderingSon'' has Yuki buying Takatsuki a gakuran. In the manga Takatsuki already has a gakuran. She wore a gakuran frequently while out as a boy, and the gakuran is a hand-me-down from her brother.
* In ''Manga/{{Ooku}} The Inner Chambers'', [[spoiler: the shogunate bypasses the closest heir, Tokugawa Harusada, in favor of her son Toyochiyo (Shogun Ienari). In real life, the reason Ienari became shogun was because he had been adopted by his predecessor Ieharu to become his heir. In ''Ooku'', though, no such adoption ever took place, and everyone had expected Harusada to become the next shogun, making her abdication one of these, especially since no explanation's been given so far as to why she turned it down.]]
* The SickEpisode from ''Manga/MonthlyGirlsNozakiKun'' revolves around Sakura, Hori, and Waka having to guess how Mamiko, the heroine in Nozaki's manga, would act after Nozaki gets sick and is unable finish his current chapter. They never even ''think'' to call their friend Mikoshiba for help, despite the fact that Mamiko's personality is explicitly said to be based off his, meaning he would likely have some insight into how to write her. The manga chapter this episode was adapted from contained a line stating that they would be unable to reach Mikoshiba since he was either buying or playing a newly-released DatingSim, but for some reason this scene was omitted from the anime.
* A large amount occur in the anime adaptation of ''Manga/TokyoGhoul'', due its severely compressed nature. One of the more notable ones is with Tsukiyama. In the manga, Tsukiyama becomes a major ally of Kaneki's in the latter half and goes through significant CharacterDevelopment, culminating in a confrontation with Kaneki where he attempts to prevent Kaneki from going on a suicide mission, which causes Tsukiyama to eventually have a mental breakdown. In the anime, the plot is altered so his CharacterDevelopment doesn't happen, but the confrontation plays out pretty much the exact same way, which makes his reaction come off as completely overblown and random, considering he and Kaneki have barely got know each other. Another example is that in the manga, it is revealed that [[spoiler: Dr Kanou was intentionally creating One-Eyed-Ghouls for Aogiri and Kaneki was a successful experiment.]] This (along with [[spoiler: Kanou's]] character) is cut from the anime, so the existence of the twins Kurona and Nashiro go completely unexplained.
* The anime of Manga/{{Karneval}} drops a sub-plot early in the story in which Nai is framed for murdering a policeman, leaving it unexplained why Gareki needs to keep him hidden from the police in subsequent scenes.
* ''Manga/AttackOnTitan'':
** In the anime, the Titan eating Eren's mother is shown intentionally breaking her spine beforehand, which makes little sense for a mindless Titan to do. Though Eren's mother ''was'' struggling against the Titan's hold, it's possible the Titan was at least smart enough to know that crushing her would make her stop squirming.
** Episode 25 shows Levi, getting Eren [[spoiler:out of his Titan form]] in his 3D Maneuver Gear after defeating [[spoiler:Annie]], despite that he had [[spoiler:an injured leg]] back in Episode 22, which was emphasized several times. In the manga, [[spoiler:he wasn't able to participate in capturing Annie because of his injury]].
** In the manga, [[spoiler:titan!Annie was scaling the Wall so quickly that titan!Eren had to throw Mikasa in order to reach her. In the anime, Mikasa was somehow able to reach her all on her own (though it would appear that titan!Annie was climbing the Wall much slower than in the manga).]]
* ''Manga/FairyTail'': While the anime will often make little corrections to Mashima's consistency errors, coming close to the manga has caused it to create a few of its own. The shadowy figure that Jellal is kept from pursuing is changed from a spiky haired silhouette to the hooded girl, for instance. [[spoiler: While that was generally assumed to have been Mashima not knowing how the figure should look until later, a manga chapter that came out at almost exactly the same time as the episode revealed that it actually had been Silver, not F!Lucy.]]
** The anime also had the Trinity Raven guild escape the Tower of Heaven before it collapsed, whereas they are implied to die in it in the manga. Along comes chapter 482 and 483, and it's revealed that [[spoiler: they actually did die in the Tower, since a villain uses a spell that conjures dead people, and Ikaruga is one of them]].
* While ''Manga/{{Gintama}}'' is mostly consistent (helped by two breaks), it suffered this when TheMovie included a flashback scene that strongly implied that Gintoki was taken in later by Shouyo after Takasugi and Katsura, only for it to be established later on that it was the other way around. Unsurprisingly, when the anime finally adapted those chapters, it lampshaded the problem two episodes later were Gintoki answered fanmail and promptly made up a deliberately nonsense explanation.
* [[Manga/TheLegendOfZelda The manga adaptation of]] ''VideoGame/TheLegendOfZeldaOcarinaOfTime'' skips the Temple of Shadows, meaning that we see Link collecting only five medallions... but when he haves to break the barrier around Hyrule Castle, the sixth medallion appears out of nowhere, along with Impa in the group shot with the other sages.
* The first episode to ''Manga/YourLieInApril'' has Kousei mention that he has brown eyes. This is [[AdaptationDyeJob despite]] him very clearly having blue eyes.
* ''Anime/AceAttorney'': A major part of Phoenix's backstory involves "class trial" when he was accused of stealing [[spoiler: Edgeworth's]] lunch money. He was sick the day the money was stolen and didn't attend PE class, so when he was only one without alibi everyone assumed it was him. The anime-only episode "Turnabout Promise" [[AdaptationExpansion extended the scene]] by showing Pheonix taking the envelope the money was supposed to be in and [[NotWhatItLooksLike being seen by a girl from his class]]. However, despite being seemingly caught red-handed, the trial goes the same way it did in the game with [[spoiler:Edgeworth]] claiming they accuse him with no evidence, and the fact that he was seen isn't brought up at all.
* ''Anime/TheMelancholyOfHaruhiSuzumiya'' has a minor one in the "The Sigh of Haruhi Suzumiya" arc of the anime. The light novel starts with Kyon telling Haruhi about the powers of the SOS Brigade members, and Haruhi dismissing it as "too convenient". Then the main plot is Haruhi making a bad movie where the SOS Brigade members played characters with their actual powers. The anime moved around that first scene to make it the last scene of the arc (so Haruhi dismissed because it was so obvious he was basing it on the movie). But the anime still kept Kyon's narration line "Is this my fault?" when he found out about the roles.
* In ''Anime/MagicalGirlLyricalNanohaAs'', Chrono's staff Durandal was created by Gil Graham to fight the Book of Darkness. Due to Graham being AdaptedOut, the movie changed it to [[AncestralWeapon originally belonging to his father]]. All well and good, were it not for the fact that Chrono's father died via exploding spaceship while on duty (meaning he would have had his weapon with him), which makes you wonder how in the
hell Lindy got a hold of it.
* ''LightNovel/FullMetalPanic'' has a small version of this: Gauron's twin assassins mistakenly pronounce Kaname's surname Chidori using the Chinese reading of the characters. This makes sense in the original light novels and the anime adaptation, where they're Chinese; it's less logical in the manga adaptation ''Full Metal Panic! Sigma'', which [[RaceLift makes them]] ambiguously Caucasian {{Gothic Lolita}}s.
[[/folder]]



[[folder:Films -- Live-Action]]
* ''Film/TheWizardOfOz'' famously [[CompositeCharacter combined the roles]] of the two Good Witches (of the North and the South), creating the plot hole where Glinda doesn't tell Dorothy what the slippers do on their first meeting, which would have saved her a lot of trouble. Originally the Good Witch of the North (not Glinda) gave her the shoes, but only Glinda knew they could bring her home. In the film, Glinda defends her withholding of this crucial information by [[HandWave explaining]] "She wouldn't have believed me!" despite the fact that, being in a magical land with talking trees and animals, Dorothy would have been willing to try anything.
* The film version of ''Film/VForVendetta'':
** {{Inverted}}. In the original graphic novel, the disaster that allowed Norsefire to come to power was a nuclear war between the US and USSR in the 60's, and that nuclear fallout caused Britain to be shut off from the rest of the world and most of their food supply to become irradiated. Of course, this begs the question of why the fallout didn't kill everyone in Britain as well, since they're fairly close (as far as radiation is concerned) to the major population centers of Russia. The film fixed this, however, by changing the nuclear war to a simple collapse of many of the world's governments, and a massive plague secretly created by Norsefire.
** But played straight in having the government's supercomputer Fate cut out of the movie; V having completely subverted the computer that controlled everything for Norsefire was a major plot point. Without it, his ability to never show up on any of Norsefire's omnipresent surveillance becomes strangely inexplicable.
* ''Film/OnHerMajestysSecretService'' is one of the more faithful adaptations of a ''Literature/JamesBond'' novel to film--which, ironically, leads to problems. In the previous novels, Bond had never met Ernst Stavro Blofeld directly, so naturally they did not recognize each other on sight in the ''[[Literature/OnHerMajestysSecretService OHMSS]]'' book. But in [[Film/YouOnlyLiveTwice the previous Bond movie]], Bond and Blofeld ''had'' met face-to-face. However, they still do not recognize each other in the ''OHMSS'' movie, because they didn't recognize each other in the book! The fan theory is that Bond's plastic surgery to appear more Japanese in the movie ''Film/YouOnlyLiveTwice'' meant Blofeld didn't recognise him.
* In the book of ''Film/SleepingWithTheEnemy'' the heroine has to live on oatmeal and beans for months after escaping her abusive husband. The film instead has Laura inexplicably affording a large and spacious house, complete with luxuries like brand name goods. Despite having only a part-time library job before her escape and not working for ages after she does settle into town.
* ''Film/TheLordOfTheRings''
** The movies leave numerous questions about Aragorn to people who haven't read [[Literature/TheLordOfTheRings the books]]. If everyone knows him to be the rightful heir of Isildur and King of Gondor, why isn't he already? Why is Aragorn a 'Ranger from the North' if his homeland is Gondor? In the book, Aragorn's ancestry is not nearly so well known, and he has to go to considerable lengths to prove he's the rightful heir to the throne, though even the book left most of this backstory [[AllThereInTheManual to the appendices]].
** In the first book Gandalf came to Isengard because Saruman asked him to using Radagast[[labelnote:Note]]a wizard who is friendly with animals and can talk with them[[/labelnote]] as courier. During the meeting with Radagast Gandalf asked him to seek help with animals he's friendly with, to bring any usefull information to him and Saruman. This is why Eagle later came to Isengard and rescued Gandalf. In the movies however Gandalf came to Isengard of his own will and his meeting with Radagast never happened, so Eagle coming to rescue him comes across as DeusExMachina.
** Frodo ends up face to [[FacelessEye eye]] with Sauron when he just puts on the Ring in Bree -- a very dramatic and special-effecty scene that's totally absent from the book. If Sauron is capable of linking his mind to the Ring so strongly, even if that's only when it is worn, that leaves questions about why he has no idea where it's moving and being used later on. Also related to the next point.
** Near the end of the second film, Frodo clearly displays to one of the Ringwraiths at Osgiliath that he has the Ring. So in the third film, why is Sauron using all his forces to attack Minas Tirith rather than looking for Frodo? In the books, the scene at Osgiliath never happens; Sauron is never totally certain of who exactly has the Ring, but his hunch is Aragorn. This also explains why Sauron's forces fight the Armies of Men outside the Black Gate, whereas in the film Sauron seems to be doing out of a need to defend his reputation rather than any material incentive.
** In the ''Return of the King'' movie, Aragorn, Legolas and Gimli somehow sail a ship up the Anduin to Minas Tirith all by themselves -- never mind that none of them have ever sailed a ship before ([[http://www.shamusyoung.com/twentysidedtale/?p=1212 lampshaded]] in ''Webcomic/DMOfTheRings''), and they'd need a larger crew anyway. Also, somehow the entire ghost army fits on that one ship while the rest are left behind. In the book, they also had thirty-something Rangers with them, plus thousands of soldiers from Lebennin who were free to come to Minas Tirith as reinforcements after the ghosts took care of the Corsairs of Umbar.
* The ''Film/HarryPotter'' movies:
** In ''Film/HarryPotterAndThePrisonerOfAzkaban'', the authors of the Marauder's Map - "Moony, Wormtail, Padfoot and Prongs" - are never revealed to be [[spoiler: Remus Lupin, Peter Pettigrew, Sirius Black and James Potter]], respectively. This causes problems in the later movies when the nicknames are used with no explanation. Though attentive viewers could learn this with the fact that Pettigrew is referred as Wormtail constantly and Harry does make a vague reference to Sirius being Padfoot. Though this requires viewers to heavily put two and two together to figure that James is Prongs and Lupin Moony. Also, it leaves anyone who hasn't read the book scratching their heads as to how Lupin knew what the map was. In turn, his worry about Sirius using the map to find Harry makes no sense for the same reason.
** The same movie is inconsistent with effects of "expeliarmus" spell. When Lupin entered Shrieking Shack he used it on Harry which removed his wand without causing him any harm, while the same spell used by Harry on Snape had him BlownAcrossTheRoom instead of disarming him. In the book Harry, Ron and Hermione used the spell at the same time and it was combined effect which threw Snape on the wall, but in the movie Harry did it alone to the same effect.
** The sequence where the Map insults Snape is a bit weird. Snape catches Harry out of his dorm at night, which is enough to get him in trouble by itself. There's no reason for Snape to force Harry to empty his pockets, and no reason to suspect the map is anything but a blank parchment[[note]]Yes, Snape's a talented Legilimens, but again, Harry should be in trouble already; Snape doesn't need to look for more.[[/note]]. After Lupin confiscates the map, Harry somehow avoids further trouble. In the book, Snape catches Harry coming back from Hogsmeade, and has him empty his pockets and tries to reveal the Map's secret to prove Harry's been in Hogsmeade; when he can't, Harry barely escapes trouble.
** In [[Literature/HarryPotterAndTheGobletOfFire the fourth book]], [[spoiler: Barty Crouch Jr. receiving the Dementor's kiss]] is what prevents him from giving evidence about Voldemort's return (it's implied that the Dementor does this on Voldemort's orders); ''Film/HarryPotterAndTheGobletOfFire'' omits this, and simply has him sent back to Azkaban, but a) all of the fallout from the book version of events is still present in the fifth film and b) one wonders why he's not freed from Azkaban along with Bellatrix Lestrange if he's still there in movie continuity.
*** An even bigger plot-hole would be the beginning of the movie. In the book, a rather complicated series of events shows that the Quidditch Tournament is over, and many of the wizards get very drunk in celebration. Some of the more muggle-prejudiced ones begin to use magic to harass the muggles on site. Barty Crouch Jr. then gets angry at the sight of this group because he knows that several of its members were former Death-Eaters and he believes that they have no business celebrating when they forsook Voldemort. He thus summons the Dark Mark. Many of the attendees are confused, especially when they discover that the wand was used by Barty Crouch Sr.'s house elf. To simplify this chain of events for the movie, all of this is replaced with Death-Eaters simply attacking the tournament and everyone fleeing in terror. This brings up various problems including: 1. Why are Death-Eaters attacking the Quidditch tournament? Do they hate the game? 2. Aren't the Death Eaters supposedly reformed or in Azkaban? 3. Why are thousands of (presumably) competent wizards fleeing from a dozen or so Death Eaters? 4. Along with #2, doesn't this attack and the Dark Mark make the claim of Voldemort's return seem a *lot* more plausible?
** The mirror in ''Film/HarryPotterAndTheOrderOfThePhoenix'' never makes an appearance, but a shard from it is still inexplicably a plot device in the ''Film/HarryPotterAndTheDeathlyHallows'' movies. It's said to have belonged to Sirius but it's still never stated when or where Harry got it or why there is only a shard instead of a full mirror.
** The Fidelius Charm, a magical means of protecting secrets, is used twice and prominently in the books. It never shows up in the movie, leading to a lot of baffling questions about Sirius Black and Number Twelve, Grimmauld Place.
** A minor one from ''Film/HarryPotterAndThePhilosophersStone'' is how the kids get caught out of bed. For some reason they decide to go to Hagrid's house at night despite finding out about the Philosopher's Stone during the day. They have no reason to sneak out, and why would Malfoy have any reason to follow them? Does he skulk around outside the Gryffindor common room waiting for them to make a move? It's just giving them one big IdiotBall so they can be caught and have to do detention in the forest. In the book, they were out of bed at night because they were trying to smuggle Hagrid's dragon (who had hatched weeks earlier) out of the school. Malfoy knew about this because he'd read a letter in Ron's book about the time and date of when they'd be out and about to get rid of the dragon.
** In ''Film/HarryPotterAndTheDeathlyHallows Part 1'', the kids steal Bellatrix's wand. In ''Deathly Hallows Part 2'', Hermione heads to Gringotts while impersonating Bellatrix and is told she needs to hand them her wand as confirmation of her identity. This very nearly blows the entire plan. What's gone is the fact that, in the book, the goblins ''knew'' Lestrange's wand had been stolen and were hoping to trap Harry's friends. Movie-only viewers wonder why Hermione didn't just hand them the wand, seeing as she had it anyway.
** The scene explaining the taboo on Voldemort's name in DH is deleted, so it just looks like the trio either have incredibly bad luck, or the Death Eaters are fantastic trackers who don't tell Voldemort where to find Harry and inexplicably go after him themselves; and Xenophilius Lovegood is insane, but happens to have incredibly good timing. This also results in an incredibly out of character moment in part 2 where Harry refers to Voldemort as "You-Know-Who" despite spending the entire series insisting on using his name.
*** The way the movie focuses on Xenophilius says "Voldemort" implies that his name can alert Death Eaters and Snatchers to an exact location, but the explanation is still gone.
** In ''Film/HarryPotterAndTheChamberOfSecrets'' after Harry finds the diary, as soon as he realises it can talk back he immediately asks it about the Chamber, even though he would have no reason to suspect the diary is connected in any way to those events. A deleted scene shows (as in the novel) a conversation the boys have with Hermione regarding the diary.
*** A much more baffling plot hole occurs immediately after, after Harry is shown the memory of [[spoiler:Hagrid being caught with Aragog]] the very next scene is where the diary is stolen back. Harry meets nor speaks to anyone this entire time and no explanation is given later when it is revealed that [[spoiler:Ginny]] stole the diary back. In the novel, the Valentine's Day scene fills in this gap.
** The Thestrals can only be seen by people who have seen death. In both the books and the movies, it is Cedric's death that causes Harry to start seeing them. However, he actually witnesses two deaths in the films prior to Cedric's. The first was his mother -- in the books, he was laying in his crib and only saw the flash of light from Voldemort's wand, but in the films Harry is sitting up and clearly sees the murder in the flashback in ''Film/HarryPotterAndTheDeathlyHallows Part 2''. The second is Professor Quirrell, who Harry incinerates with ThePowerOfLove. In the books Harry passes out before Quirrell dies, however in the movie he kills Quirrell himself and only passes out when Voldemort attacks him afterward. Despite both of these, the Thestrals remain invisible to Harry until ''Film/HarryPotterAndTheOrderOfThePhoenix''. JK Rowling herself had to address this considering the Thestrals didn't appear at the end of the fourth book. They don't appear visible until the person in question has processed the death and come to accept it.
** Dobby's appearances in the fourth, fifth and sixth books were cut out of the corresponding movies, meaning Harry was the only main character apart from Dumbledore to have met him. This makes Ron and Hermoine's happy reactions to his reappearance in ''The Deathly Hallows Part 1" make little to no sense at all.
** A minor one in the first movie comes during the flying lesson. In the book, Madam Hooch tells the students to start flying on the count of three; Neville, who's terrified of flying, accidentally jumps into the air on "two". In the movie, they're supposed to start flying when Madam Hooch blows her whistle, but when she does, Neville is the only one to start flying and everyone starts telling him to come down immediately.
** The films omit the entirety of Percy Wesley's minor-but-existent character arc, leaving it totally unexplained why he's suddenly working for [[ArcVillain Umbridge]] in the fifth movie, then just as suddenly back with the good guys in the finale.
* In ''Film/InfernalAffairs'', only Superintendent Wong knows the identity of the undercover cop. When [[spoiler:he's murdered]], the cop has no one in the police department to turn to. In ''Film/TheDeparted'', both Captain Queenan and his assistant Sergeant Dignam know who the undercover cop is. When [[spoiler:Queenan is murdered]], the cop acts like he has no one to turn to, but Dignam is simply away on suspension. Why no one bothers to look him up is never explained. [[spoiler:Dignam's sudden reappearance at the end]] is treated as a surprise, but fans of the original would be waiting for that dangling thread to resolve for half the film.
* In ''Franchise/{{Transformers}}'' comics, transformers with the ability to transform into biological animals (including humans) are known as "Pretenders", who are fitted with special external armor shells so that they can do this when normal bots can't. In ''Film/TransformersRevengeOfTheFallen'' however, the decepticon "Alice"'s ability to disguise herself as Sam's classmate seems to come out of nowhere, especially considering the audience was explicitly shown how both mini-cons and normal bots scan their Alt-mode's in the first film, and there is nothing to indicate they can do this on anything non-mechanical.
* In ''Film/TheLastAirbender''
** Earthbenders are kept on land, yet do no earthbending at all. In the [[WesternAnimation/AvatarTheLastAirbender original show]] the Fire Nation keeps Earthbenders it captures on a metal platform at sea, far away from the rock and ground they could use to help escape. Both versions explain that the earthbenders have "broken spirits," but in the show, their spirits are broken from being defenseless for so long, while in the film, the earthbenders have ''always'' been right beside their weapons for escape.
** The film adds the idea that firebenders can only manipulate pre-existing fire, yet nobody ever tries to put out the firebenders' fires beforehand to effectively disarm them.
* In ''Before I Go To Sleep", it is stated that Mike abducted Christine four months earlier, and since then has taken advantage of her amnesia to pretend to be her ex-husband Ben. In the book, the real Ben (who despite their divorce, still deeply cares for Christine) has not been aware of this because he has been working abroad for several months. The film, however, makes no reference to Ben having been away, but maintains the situation of him not having been in contact with Christine for a long time.
** In the book, Christine's friend Claire does not realise and tell Christine that Mike is not Ben due to having been out of contact with Ben for years, and so hadn't spoken to him to realise something was wrong. In the film, Claire is easily able to contact Ben, and their lack of contact is instead explained purely out of Claire's embarrassment about her affair with Ben.
** The book makes it very clear that Mike is psychotic, which explains the considerable flaws in his efforts at deceiving Christine. The film does not really follow this portrayal of Mike, which leaves the view wondering why his actions are so obviously irrational and badly thought out.
* The short story turned short film ''Paul's Case'' has an example of this, although it's not so much a plot hole as a moment of characterization kept in when it didn't fit with the other changes. In the original story, Paul is portrayed in a way that makes it easy to assume he has mental problems. In the film he's turned much more sympathetic, and is shown to be a victim of circumstances, yet the film keeps in a scene where Paul creepily fantasizes about his father shooting him when he crawls through his basement window.
* ''Film/TheChroniclesOfNarnia'':
** In the film of ''Literature/TheVoyageOfTheDawnTreader'', a search for seven swords is superimposed over the novel's search for seven missing Telmarine lords. The claim that at least one of these swords was given to Caspian's father by Aslan is an Adaptation-Induced Plot Hole: Aslan hadn't been seen in Narnia for centuries prior to the events of ''Prince Caspian'', and as a Telmarine, Caspian's dad would've been brought up to believe "Aslan" was either a myth or a monstrous lion-demon, not a benefactor.
** The same film otherwise narrowly avoids another PlotHole. On the Dufflepuds' island, Lucy gets kidnapped because only a girl can read the spell to break the enchantment. The film adds another girl, Gael, to the cast. However the PlotHole is avoided when one of the Dufflepuds notes that Gael is also a girl -- but they decide to kidnap Lucy because she has a book next to her, indicating she knows how to read.
* In ''Film/FlowersInTheAttic'' after the husband dies, Corrine has to go back to her rich family and hope for an inheritance or else her children will have no money. [[Literature/FlowersInTheAttic The book]] is set in the 1950s but the film takes place in the 80s (when it was made). Corrine not attempting to work or not having a pre-existing job already is odd since there were less housewives that stayed exclusively at home in the 80s than there were in the 50s. Another one relates to the AgeLift. Chris and Cathy are fourteen and twelve respectively in the book but the movie ages them up to at least sixteen or seventeen. One wonders why they didn't try to find jobs either. Also as they're older, them being afraid of their grandmother is a little less believable - Chris would easily be able to overpower her.
* ''Film/SinCity'':
** The movie moves Dwight's "Most people think Marv is crazy" monologue from ''A Dame to Kill For'' to ''The Hard Goodbye''. This works fine in a standalone movie, but in the comics the chronology of that night is very well fleshed out. Its revealed that while Marv was drinking at Kadie's after Goldie's murder two cops were questioning Shellie about Dwight's whereabouts. At that point in the story Dwight is recovering from events in his own story, so he couldn't be anywhere near Kadie's that night. Furthermore, he underwent plastic surgery which gave Dwight his appearance in the movie but that only happened ''months'' after the events of ''The Hard Goodbye'', at which point Marv [[spoiler:was on Death Row.]] Since ''Sin City 2'' is slated to use ''A Dame to Kill For'' as its lead story they'll have to break from their own continuity or alter the timeline and make the entirety of ''Dame to Kill For'' take place before ''Hard Goodbye''.
** There's also The Salesman, the assassin from "The Customer is Always Right," who later becomes The Colonel, the BigBad of ''Hell and Back''. Since The Colonel is dead by BoomHeadshot (and quite deservedly so) at the end of ''Hell and Back'' and the events of ''The Big Fat Kill'' take place after that story ([[spoiler:Manute shows up alive in the former and is killed in the latter]]), the Salesman doing to Becky what he did to his "customer" in the other story at the very end of the film adaptation can't exactly happen in ''Sin City'' canon unless someone else is the Colonel in the film adaptation of ''Hell and Back''.
* In the original ''Film/TotalRecall1990'', there was a perfectly legitimate explanation why Hauser had to have his memory erased and take on the Quaid persona, because Quato, the leader of [[LaResistance the resistance]] was a mutant who could read minds, and could easily detect an undercover spy therefore. But in [[Film/TotalRecall2012 the remake]], the leader is just some standard normal guy without any mind reading ability, thus eliminating the need to erase his memory, and making the whole premise of the film rather faulty.
* ''Film/{{Watchmen}}'':
** The movie gives a rather weak explanation as to why the Comedian was killed. In [[ComicBook/{{Watchmen}} the comic]] it's laid out that it's because he discovered the secret island where [[spoiler: Veidt/Ozymandias was conducting genetic experiments allowing for the creation of the giant monster in the climax]], but since this part is removed from the film and the ending is changed, it doesn't appear. Rather, the reason given is simply that he discovered [[spoiler: Veidt/Ozymandias]]'s plan after being ordered by the government to investigate him, and that's all the explanation we get.
** In both the movie and the book, [[spoiler: Ozymandias]] plans to avert a coming war between the United States and the Soviet Union by orchestrating a horrific massacre and blaming it on a non-human outsider, giving the two countries a common enemy to unite against. In the book, he does this by attacking New York with a genetically engineered monster to fool the people of the world into believing that Earth has been invaded by aliens. In the movie, he destroys the world's major cities with a series of energy blasts, and stages them to look like Doctor Manhattan has turned against humanity. The problem? Almost everyone on Earth knows that Doctor Manhattan is an '''American citizen''', and that he's been a loyal operative of the US military for decades--making it far more likely that the rest of the world would just hold America responsible for the massacres rather than joining with them.
* While the original ''Literature/BattlefieldEarth'' novel isn't exactly regarded as a masterpiece of plotting, the [[Film/BattlefieldEarth film]] still introduces various plot holes and problems of its own. Perhaps the most glaring is that the Psychlos somehow missed Fort Knox altogether in the film, whereas in the novel it was one of the first locations they hit. In the novel, the rebels acquire gold from an armored car stocked with bricks. The Psychlo sensors didn't notice the gold 1,000 years prior due to the car's frame blocking the scan.
* In the 2012 adaptation of ''Film/{{Les Miserables|2012}}'', there are several minor ones that crop up.
** In the "Who Am I" number, Valjean simply tells the judge who he is to clear the falsely-accused man's name, providing no more evidence than saying that Javert will recognize him (and given that Javert just spent the last scene saying he now believes that Valjean is ''not'' the convict he was looking for, it comes across as Javert having rather bad judgement). In the musical, the script specifies that Valjean proves his identity by showing the tattoo of "24601" branded on his chest.
** Another takes place when Thenardier and his gang try to rob Valjean's house. In the play, after Eponine gets rid of them, Cosette pretends she saw three mysterious men lurking outside which caused her to scream, thus causing Valjean to think Javert has found him. In the movie, Cosette has already gone to bed and thus Valjean only hears Eponine screaming and... somehow comes to the conclusion that this means that Javert is nearby.
** Eponine still crossdresses in this version, but for unclear reasons as there are women openly staying on the barricades.
* In ''Literature/{{City of Bones|2007}}'', Simon was abducted by vampires because he'd been turned into a rat, and they mistook him for one of them. In ''Film/TheMortalInstrumentsCityOfBones'', they took him as a hostage because they wanted the Mortal Cup. The movie failed to give us any possible use Vampires could have for the Cup.
* ''Film/FullCircle'' completely leaves out the connection between its main character and antagonist, which was detailed in the original book.
* ''Film/DawnOfTheDead1978'' was reworked into the very different film ''Zombi'' for European audiences, with a faster pace than the American version at the cost of a new plot hole. Originally, Roger and Peter succeed at their first round of barricading the mall doors with trucks, causing Roger to start celebrating while they're getting more trucks, get too cocky, and then [[spoiler:get bitten by a zombie]]. ''Zombi'' skips over the first part so Roger's careless behavior comes out of nowhere before they've accomplished anything and is completely out of character.
* ''Film/{{Troy}}'' attempts a {{Demythtification}} of ''Literature/TheIliad'', telling the story of the Trojan War with no mythic or supernatural elements whatsoever. While most of the story works fine, the finale with the Trojan Horse stretches WillingSuspensionOfDisbelief quite a bit. Sure, [[ItWasHisSled everyone in the audience likely knows that the Trojans are going to take the horse with the Achaean army concealed inside]], but more skeptical viewers might wonder just why the hell [[IdiotBall they never think to wonder if it's a trap, or even inspect the horse before taking it into the city]]. Well, in most mythical accounts of the Trojan War, they ''did''. The Trojan priest Sinon pointed out that it was probably a trap...and was promptly strangled to death by a sea serpent sent by Poseidon, who was on the Achaeans' side. After that, they understandably got scared, and came to the conclusion that they'd risk the Gods' wrath if they refused to take it. In ''Troy'', there are no sea serpents, and none of the Trojans even question the wisdom of taking a giant wooden horse into their city walls after the enemy Achaeans all mysteriously disappear.
* Minor one in ''Film/IntoTheWoods''. Rapunzel is actually the Baker's long lost sister, having been taken by the witch when he was a toddler. The Baker never finds this out in [[Theatre/IntoTheWoods the stage show]], and it's the same case in the film. The PlotHole comes from the fact that the Narrator is a separate character in the stage show. For [[CompositeCharacter convenience purposes]] the Baker also serves as the Narrator in the film. And the film ends with the Baker narrating the story to his newborn son. But since he never finds out Rapunzel is his sister, it begs the question of how he knows this in narration.[[note]] Though there is a small possibility [[spoiler: since Rapunzel [[SparedByTheAdaptation survives in the film]], that she and the Baker eventually do reconcile some time after the events of the story]] - as the narration says a lot of things the Baker wasn't witness to, so it could be assumed that the narration we hear is him telling the story much later after getting the rest of the information.[[/note]]
* In the play version of ''Theatre/PerfectPie'', Marie's reluctance at going swimming is because she's afraid of having a seizure while she's in the water. In the movie adaptation she doesn't have seizures, leaving her fear of going swimming inexplicable.
* ''Virus: Day of Resurrection'' has a RaceAgainstTime to turn off a nuclear defense network from firing. In both the novel and the film there are two such systems, one in the USA and one in Russia. While the USA mission arrives too late, the novel implies the Soviet team ''is'' successful, thus no missiles hit North America. The film makes no such mention of the Soviet team, and ''total'' nuclear winter occurs; this making the hero's long walk from Washington to South America nothing sort of an outright ''miracle'' as he arrives with nary a hint of radiation poisoning.

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[[folder:Films -- Live-Action]]
[[folder:Radio]]
* ''Film/TheWizardOfOz'' famously [[CompositeCharacter combined the roles]] of the two Good Witches (of the North and the South), creating the plot hole where Glinda doesn't tell Dorothy what the slippers do on their first meeting, which would have saved her a lot of trouble. Originally the Good Witch of the North (not Glinda) gave her the shoes, but only Glinda knew they could bring her home. In the film, Glinda defends her withholding of this crucial information by [[HandWave explaining]] "She wouldn't have believed me!" despite the fact that, being in a magical land with talking trees and animals, Dorothy would have been willing to try anything.
* The film
radio version of ''Film/VForVendetta'':
** {{Inverted}}. In the original graphic novel, the disaster that allowed Norsefire to come to power was a nuclear war between the US and USSR in the 60's, and that nuclear fallout caused Britain to be shut off from the rest of the world and most of their food supply to become irradiated. Of course, this begs the question of why the fallout didn't kill everyone in Britain as well, since they're fairly close (as far as radiation is concerned) to the major population centers of Russia. The film fixed this, however, by changing the nuclear war to a simple collapse of many of the world's governments, and a massive plague secretly created by Norsefire.
** But played straight in having the government's supercomputer Fate cut out of the movie; V having completely subverted the computer that controlled everything for Norsefire was a major plot point. Without it, his ability to never show up on any of Norsefire's omnipresent surveillance becomes strangely inexplicable.
* ''Film/OnHerMajestysSecretService'' is one of the more faithful adaptations of a ''Literature/JamesBond'' novel to film--which, ironically, leads to problems. In the previous novels, Bond had never met Ernst Stavro Blofeld directly, so naturally they did not recognize each other on sight in the ''[[Literature/OnHerMajestysSecretService OHMSS]]'' book. But in [[Film/YouOnlyLiveTwice the previous Bond movie]], Bond and Blofeld ''had'' met face-to-face. However, they still do not recognize each other in the ''OHMSS'' movie, because they didn't recognize each other in the book! The fan theory is that Bond's plastic surgery to appear more Japanese in the movie ''Film/YouOnlyLiveTwice'' meant Blofeld didn't recognise him.
* In the book of ''Film/SleepingWithTheEnemy'' the heroine has to live on oatmeal and beans for months after escaping her abusive husband. The film instead has Laura inexplicably affording a large and spacious house, complete with luxuries like brand name goods. Despite having only a part-time library job before her escape and not working for ages after she does settle into town.
* ''Film/TheLordOfTheRings''
** The movies leave numerous questions about Aragorn to people who haven't read [[Literature/TheLordOfTheRings the books]]. If everyone knows him to be the rightful heir of Isildur and King of Gondor, why isn't he already? Why is Aragorn a 'Ranger from the North' if his homeland is Gondor? In the book, Aragorn's ancestry is not nearly so well known, and he has to go to considerable lengths to prove he's the rightful heir to the throne, though even the book left most of this backstory [[AllThereInTheManual to the appendices]].
** In the first book Gandalf came to Isengard because Saruman asked him to using Radagast[[labelnote:Note]]a wizard who is friendly with animals and can talk with them[[/labelnote]] as courier. During the meeting with Radagast Gandalf asked him to seek help with animals he's friendly with, to bring any usefull information to him and Saruman. This is why Eagle later came to Isengard and rescued Gandalf. In the movies however Gandalf came to Isengard of his own will and his meeting with Radagast never happened, so Eagle coming to rescue him comes across as DeusExMachina.
** Frodo ends up face to [[FacelessEye eye]] with Sauron when he just puts on the Ring in Bree -- a very dramatic and special-effecty scene that's totally absent from the book. If Sauron is capable of linking his mind to the Ring so strongly, even if that's only when it is worn, that leaves questions about why he has no idea where it's moving and being used later on. Also related to the next point.
** Near the end of the second film, Frodo clearly displays to one of the Ringwraiths at Osgiliath that he has the Ring. So in the third film, why is Sauron using all his forces to attack Minas Tirith rather than looking for Frodo? In the books, the scene at Osgiliath never happens; Sauron is never totally certain of who exactly has the Ring, but his hunch is Aragorn. This also explains why Sauron's forces fight the Armies of Men outside the Black Gate, whereas in the film Sauron seems to be doing out of a need to defend his reputation rather than any material incentive.
** In the ''Return of the King'' movie, Aragorn, Legolas and Gimli somehow sail a ship up the Anduin to Minas Tirith all by themselves -- never mind that none of them have ever sailed a ship before ([[http://www.shamusyoung.com/twentysidedtale/?p=1212 lampshaded]] in ''Webcomic/DMOfTheRings''), and they'd need a larger crew anyway. Also, somehow the entire ghost army fits on that one ship while the rest are left behind. In the book, they also had thirty-something Rangers with them, plus thousands of soldiers from Lebennin who were free to come to Minas Tirith as reinforcements after the ghosts took care of the Corsairs of Umbar.
* The ''Film/HarryPotter'' movies:
** In ''Film/HarryPotterAndThePrisonerOfAzkaban'', the authors of the Marauder's Map - "Moony, Wormtail, Padfoot and Prongs" - are never revealed to be [[spoiler: Remus Lupin, Peter Pettigrew, Sirius Black and James Potter]], respectively. This causes problems in the later movies when the nicknames are used with no explanation. Though attentive viewers could learn this with the fact that Pettigrew is referred as Wormtail constantly and Harry does make a vague reference to Sirius being Padfoot. Though this requires viewers to heavily put two and two together to figure that James is Prongs and Lupin Moony. Also, it leaves anyone who hasn't read the book scratching their heads as to how Lupin knew what the map was. In turn, his worry about Sirius using the map to find Harry makes no sense for the same reason.
** The same movie is inconsistent with effects of "expeliarmus" spell. When Lupin entered Shrieking Shack he used it on Harry which removed his wand without causing him any harm, while the same spell used by Harry on Snape had him BlownAcrossTheRoom instead of disarming him. In the book Harry, Ron and Hermione used the spell at the same time and it was combined effect which threw Snape on the wall, but in the movie Harry did it alone to the same effect.
** The sequence where the Map insults Snape is a bit weird. Snape catches Harry out of his dorm at night, which is enough to get him in trouble by itself. There's no reason for Snape to force Harry to empty his pockets, and no reason to suspect the map is anything but a blank parchment[[note]]Yes, Snape's a talented Legilimens, but again, Harry should be in trouble already; Snape doesn't need to look for more.[[/note]]. After Lupin confiscates the map, Harry somehow avoids further trouble. In the book, Snape catches Harry coming back from Hogsmeade, and has him empty his pockets and tries to reveal the Map's secret to prove Harry's been in Hogsmeade; when he can't, Harry barely escapes trouble.
** In [[Literature/HarryPotterAndTheGobletOfFire the fourth book]], [[spoiler: Barty Crouch Jr. receiving the Dementor's kiss]] is what prevents him from giving evidence about Voldemort's return (it's implied that the Dementor does this on Voldemort's orders); ''Film/HarryPotterAndTheGobletOfFire'' omits this, and simply has him sent back to Azkaban, but a) all of the fallout from the book version of events is still present in the fifth film and b) one wonders why he's not freed from Azkaban along with Bellatrix Lestrange if he's still there in movie continuity.
*** An even bigger plot-hole would be the beginning of the movie. In the book, a rather complicated series of events shows that the Quidditch Tournament is over, and many of the wizards get very drunk in celebration. Some of the more muggle-prejudiced ones begin to use magic to harass the muggles on site. Barty Crouch Jr. then gets angry at the sight of this group because he knows that several of its members were former Death-Eaters and he believes that they have no business celebrating when they forsook Voldemort. He thus summons the Dark Mark. Many of the attendees are confused, especially when they discover that the wand was used by Barty Crouch Sr.'s house elf. To simplify this chain of events for the movie, all of this is replaced with Death-Eaters simply attacking the tournament and everyone fleeing in terror. This brings up various problems including: 1. Why are Death-Eaters attacking the Quidditch tournament? Do they hate the game? 2. Aren't the Death Eaters supposedly reformed or in Azkaban? 3. Why are thousands of (presumably) competent wizards fleeing from a dozen or so Death Eaters? 4. Along with #2, doesn't this attack and the Dark Mark make the claim of Voldemort's return seem a *lot* more plausible?
** The mirror in ''Film/HarryPotterAndTheOrderOfThePhoenix'' never makes an appearance, but a shard from it is still inexplicably a plot device in the ''Film/HarryPotterAndTheDeathlyHallows'' movies. It's
''Radio/NewDynamicEnglish'', Max said to have belonged to Sirius but it's still never stated when or where Harry got it or why there is only a shard instead of a full mirror.
** The Fidelius Charm, a magical means of protecting secrets, is used twice and prominently in the books. It never shows up in the movie, leading to a lot of baffling questions about Sirius Black and Number Twelve, Grimmauld Place.
** A minor one from ''Film/HarryPotterAndThePhilosophersStone'' is how the kids get caught out of bed. For some reason they decide to go to Hagrid's house at night despite finding out about the Philosopher's Stone during the day. They have no reason to sneak out, and why would Malfoy have any reason to follow them? Does he skulk around outside the Gryffindor common room waiting for them to make a move? It's just giving them one big IdiotBall so they can be caught and have to do detention in the forest. In the book, they were out of bed at night because they were trying to smuggle Hagrid's dragon (who had hatched weeks earlier) out of the school. Malfoy knew about this because he'd read a letter in Ron's book about the time and date of when they'd be out and about to get rid of the dragon.
** In ''Film/HarryPotterAndTheDeathlyHallows Part 1'', the kids steal Bellatrix's wand. In ''Deathly Hallows Part 2'', Hermione heads to Gringotts while impersonating Bellatrix and is told she needs to hand them her wand as confirmation of her identity. This very nearly blows the entire plan. What's gone is the fact that, in the book, the goblins ''knew'' Lestrange's wand had been stolen and were hoping to trap Harry's friends. Movie-only viewers wonder why Hermione didn't just hand them the wand, seeing as she had it anyway.
** The scene explaining the taboo on Voldemort's name in DH is deleted, so it just looks like the trio either have incredibly bad luck, or the Death Eaters are fantastic trackers who don't tell Voldemort where to find Harry and inexplicably go after him themselves; and Xenophilius Lovegood is insane, but happens to have incredibly good timing. This also results in an incredibly out of character moment in part 2 where Harry refers to Voldemort as "You-Know-Who" despite spending the entire series insisting on using his name.
*** The way the movie focuses on Xenophilius says "Voldemort" implies that his name can alert Death Eaters and Snatchers to an exact location, but the explanation is still gone.
** In ''Film/HarryPotterAndTheChamberOfSecrets'' after Harry finds the diary, as soon as he realises it can talk back he immediately asks it about the Chamber, even though he would have no reason to suspect the diary is connected in any way to those events. A deleted scene shows (as in the novel) a conversation the boys have with Hermione regarding the diary.
*** A much more baffling plot hole occurs immediately after, after Harry is shown the memory of [[spoiler:Hagrid being caught with Aragog]] the very next scene is where the diary is stolen back. Harry meets nor speaks to anyone this entire time and no explanation is given later when it is revealed that [[spoiler:Ginny]] stole the diary back. In the novel, the Valentine's Day scene fills in this gap.
** The Thestrals can only be seen by people who have seen death. In both the books and the movies, it is Cedric's death that causes Harry to start seeing them. However, he actually witnesses two deaths in the films prior to Cedric's. The first was his mother -- in the books, he was laying in his crib and only saw the flash of light from Voldemort's wand, but in the films Harry is sitting up and clearly sees the murder in the flashback in ''Film/HarryPotterAndTheDeathlyHallows Part 2''. The second is Professor Quirrell, who Harry incinerates with ThePowerOfLove. In the books Harry passes out before Quirrell dies, however in the movie he kills Quirrell himself and only passes out when Voldemort attacks him afterward. Despite both of these, the Thestrals remain invisible to Harry until ''Film/HarryPotterAndTheOrderOfThePhoenix''. JK Rowling herself had to address this considering the Thestrals didn't appear at the end of the fourth book. They don't appear visible until the person in question has processed the death and come to accept it.
** Dobby's appearances in the fourth, fifth and sixth books were cut out of the corresponding movies, meaning Harry was the only main character apart from Dumbledore to have met him. This makes Ron and Hermoine's happy reactions to his reappearance in ''The Deathly Hallows Part 1" make little to no sense at all.
** A minor one in the first movie comes during the flying lesson. In the book, Madam Hooch tells the students to start flying on the count of three; Neville, who's terrified of flying, accidentally jumps into the air on "two". In the movie, they're supposed to start flying when Madam Hooch blows her whistle, but when she does, Neville is the only one to start flying and everyone starts telling him to come down immediately.
** The films omit the entirety of Percy Wesley's minor-but-existent character arc, leaving it totally unexplained why he's suddenly working for [[ArcVillain Umbridge]] in the fifth movie, then just as suddenly back with the good guys in the finale.
* In ''Film/InfernalAffairs'', only Superintendent Wong knows the identity of the undercover cop. When [[spoiler:he's murdered]], the cop has no one in the police department to turn to. In ''Film/TheDeparted'', both Captain Queenan and his assistant Sergeant Dignam know who the undercover cop is. When [[spoiler:Queenan is murdered]], the cop acts like he has no one to turn to, but Dignam is simply away on suspension. Why no one bothers to look him up is never explained. [[spoiler:Dignam's sudden reappearance at the end]] is treated as a surprise, but fans of the original would be waiting for that dangling thread to resolve for half the film.
* In ''Franchise/{{Transformers}}'' comics, transformers with the ability to transform into biological animals (including humans) are known as "Pretenders", who are fitted with special external armor shells so that they can do this when normal bots can't. In ''Film/TransformersRevengeOfTheFallen'' however, the decepticon "Alice"'s ability to disguise herself as Sam's classmate seems to come out of nowhere, especially considering the audience was explicitly shown how both mini-cons and normal bots scan their Alt-mode's in the first film, and there is nothing to indicate they can do this on anything non-mechanical.
* In ''Film/TheLastAirbender''
** Earthbenders are kept on land, yet do no earthbending at all. In the [[WesternAnimation/AvatarTheLastAirbender original show]] the Fire Nation keeps Earthbenders it captures on a metal platform at sea, far away from the rock and ground they could use to help escape. Both versions explain that the earthbenders have "broken spirits," but in the show, their spirits are broken from being defenseless for so long, while in the film, the earthbenders have ''always'' been right beside their weapons for escape.
** The film adds the idea that firebenders can only manipulate pre-existing fire, yet nobody ever tries to put out the firebenders' fires beforehand to effectively disarm them.
* In ''Before I Go To Sleep", it is stated that Mike abducted Christine four months earlier, and since then has taken advantage of her amnesia to pretend to be her ex-husband Ben. In the book, the real Ben (who despite their divorce, still deeply cares for Christine) has not been aware of this because he has been working abroad for several months. The film, however, makes no reference to Ben having been away, but maintains the situation of him not having been in contact with Christine for a long time.
** In the book, Christine's friend Claire does not realise and tell Christine that Mike is not Ben due to having been out of contact with Ben for years, and so hadn't spoken to him to realise something was wrong. In the film, Claire is easily able to contact Ben, and their lack of contact is instead explained purely out of Claire's embarrassment about her affair with Ben.
** The book makes it very clear that Mike is psychotic, which explains the considerable flaws in his efforts at deceiving Christine. The film does not really follow this portrayal of Mike, which leaves the view wondering why his actions are so obviously irrational and badly thought out.
* The short story turned short film ''Paul's Case'' has an example of this, although it's not so much a plot hole as a moment of characterization kept in when it didn't fit with the other changes. In the original story, Paul is portrayed in a way that makes it easy to assume he has mental problems. In the film he's turned much more sympathetic, and is shown to be a victim of circumstances, yet the film keeps in a scene where Paul creepily fantasizes about his father shooting him when he crawls through his basement window.
* ''Film/TheChroniclesOfNarnia'':
** In the film of ''Literature/TheVoyageOfTheDawnTreader'', a search for seven swords is superimposed over the novel's search for seven missing Telmarine lords. The claim that at least one of these swords was given to Caspian's father by Aslan is an Adaptation-Induced Plot Hole: Aslan hadn't been seen in Narnia for centuries prior to the events of ''Prince Caspian'', and as a Telmarine, Caspian's dad would've been brought up to believe "Aslan" was either a myth or a monstrous lion-demon, not a benefactor.
** The same film otherwise narrowly avoids another PlotHole. On the Dufflepuds' island, Lucy gets kidnapped because only a girl can read the spell to break the enchantment. The film adds another girl, Gael, to the cast. However the PlotHole is avoided when one of the Dufflepuds notes that Gael is also a girl -- but they decide to kidnap Lucy because she has a book next to her, indicating she knows how to read.
* In ''Film/FlowersInTheAttic'' after the husband dies, Corrine has to go back to her rich family and hope for an inheritance or else her children will have no money. [[Literature/FlowersInTheAttic The book]] is set in the 1950s but the film takes place in the 80s (when it was made). Corrine not attempting to work or not having a pre-existing job already is odd since there were less housewives that stayed exclusively at home in the 80s than there were in the 50s. Another one relates to the AgeLift. Chris and Cathy are fourteen and twelve respectively in the book but the movie ages them up to at least sixteen or seventeen. One wonders why they didn't try to find jobs either. Also as they're older, them being afraid of their grandmother is a little less believable - Chris would easily be able to overpower her.
* ''Film/SinCity'':
** The movie moves Dwight's "Most people think Marv is crazy" monologue from ''A Dame to Kill For'' to ''The Hard Goodbye''. This works fine in a standalone movie, but in the comics the chronology of that night is very well fleshed out. Its revealed that while Marv was drinking at Kadie's after Goldie's murder two cops were questioning Shellie about Dwight's whereabouts. At that point in the story Dwight is recovering from events in his own story, so he couldn't be anywhere near Kadie's that night. Furthermore, he underwent plastic surgery which gave Dwight his appearance in the movie but that only happened ''months'' after the events of ''The Hard Goodbye'', at which point Marv [[spoiler:was on Death Row.]] Since ''Sin City 2'' is slated to use ''A Dame to Kill For'' as its lead story they'll have to break from their own continuity or alter the timeline and make the entirety of ''Dame to Kill For'' take place before ''Hard Goodbye''.
** There's also The Salesman, the assassin from "The Customer is Always Right," who later becomes The Colonel, the BigBad of ''Hell and Back''. Since The Colonel is dead by BoomHeadshot (and quite deservedly so) at the end of ''Hell and Back'' and the events of ''The Big Fat Kill'' take place after that story ([[spoiler:Manute shows up alive in the former and is killed in the latter]]), the Salesman doing to Becky what he did to his "customer" in the other story at the very end of the film adaptation can't exactly happen in ''Sin City'' canon unless someone else is the Colonel in the film adaptation of ''Hell and Back''.
* In the original ''Film/TotalRecall1990'', there was a perfectly legitimate explanation why Hauser had to have his memory erased and take on the Quaid persona, because Quato, the leader of [[LaResistance the resistance]] was a mutant who could read minds, and could easily detect an undercover spy therefore. But in [[Film/TotalRecall2012 the remake]], the leader is just some standard normal guy without any mind reading ability, thus eliminating the need to erase his memory, and making the whole premise of the film rather faulty.
* ''Film/{{Watchmen}}'':
** The movie gives a rather weak explanation as to why the Comedian was killed. In [[ComicBook/{{Watchmen}} the comic]] it's laid out that it's because he discovered the secret island where [[spoiler: Veidt/Ozymandias was conducting genetic experiments allowing for the creation of the giant monster in the climax]], but since this part is removed from the film and the ending is changed, it doesn't appear. Rather, the reason given is simply that he discovered [[spoiler: Veidt/Ozymandias]]'s plan after being ordered by the government to investigate him, and that's all the explanation we get.
** In both the movie and the book, [[spoiler: Ozymandias]] plans to avert a coming war between the United States and the Soviet Union by orchestrating a horrific massacre and blaming it on a non-human outsider, giving the two countries a common enemy to unite against. In the book, he does this by attacking New York with a genetically engineered monster to fool the people of the world into believing that Earth has been invaded by aliens. In the movie, he destroys the world's major cities with a series of energy blasts, and stages them to look like Doctor Manhattan has turned against humanity. The problem? Almost everyone on Earth knows that Doctor Manhattan is an '''American citizen''', and
that he's been a loyal operative of the US military for decades--making it far more likely born in UsefulNotes/Portland and moved to UsefulNotes/SanFrancisco when he's in college, despite that the rest of the world would just hold America responsible for the massacres rather than joining with them.
* While the original ''Literature/BattlefieldEarth'' novel isn't exactly regarded as a masterpiece of plotting, the [[Film/BattlefieldEarth film]] still introduces various plot holes and problems of its own. Perhaps the most glaring is that the Psychlos somehow missed Fort Knox altogether
in the film, whereas software he said that he lived in San Francisco "all his life".
** Max also has a son, while
in the novel it was one of the first locations they hit. In the novel, the rebels acquire gold from an armored car stocked with bricks. The Psychlo sensors didn't notice the gold 1,000 years prior due to the car's frame blocking the scan.
* In the 2012 adaptation of ''Film/{{Les Miserables|2012}}'', there are several minor ones that crop up.
** In the "Who Am I" number, Valjean simply tells the judge who
software's Module 2 Matrix Vocabulary, he is to clear the falsely-accused man's name, providing no more evidence than saying that Javert will recognize him (and given that Javert just spent the last scene saying said he now believes that Valjean is ''not'' the convict he was looking for, it comes across as Javert having rather bad judgement). In the musical, the script specifies that Valjean proves his identity by showing the tattoo of "24601" branded on his chest.
** Another takes place when Thenardier
has a daughter, and his gang try to rob Valjean's house. In the play, after Eponine gets rid of them, Cosette pretends she saw three mysterious men lurking outside which caused her to scream, thus causing Valjean to think Javert has found him. In the movie, Cosette has already gone to bed and thus Valjean only hears Eponine screaming and... somehow comes to the conclusion that this means that Javert is nearby.
** Eponine still crossdresses
later children in this version, but for unclear reasons as there are women openly staying on the barricades.
* In ''Literature/{{City of Bones|2007}}'', Simon was abducted by vampires because he'd been turned into a rat, and they mistook him for one of them. In ''Film/TheMortalInstrumentsCityOfBones'', they took him as a hostage because they wanted the Mortal Cup. The movie failed to give us any possible use Vampires could have for the Cup.
* ''Film/FullCircle'' completely leaves out the connection between its main character and antagonist, which was detailed in the original book.
* ''Film/DawnOfTheDead1978'' was reworked into the very different film ''Zombi'' for European audiences, with a faster pace than the American version at the cost of a new plot hole. Originally, Roger and Peter succeed at their first round of barricading the mall doors with trucks, causing Roger to start celebrating while they're getting more trucks, get too cocky, and then [[spoiler:get bitten by a zombie]]. ''Zombi'' skips over the first part so Roger's careless behavior comes out of nowhere before they've accomplished anything and is completely out of character.
* ''Film/{{Troy}}'' attempts a {{Demythtification}} of ''Literature/TheIliad'', telling the story of the Trojan War with no mythic or supernatural elements whatsoever. While most of the story works fine, the finale with the Trojan Horse stretches WillingSuspensionOfDisbelief quite a bit. Sure, [[ItWasHisSled everyone in the audience likely knows that the Trojans are going to take the horse with the Achaean army concealed inside]], but more skeptical viewers might
Module 4. [[FridgeHorror One can wonder just why the hell [[IdiotBall they never think to wonder if it's a trap, or even inspect the horse before taking it into the city]]. Well, in most mythical accounts of the Trojan War, they ''did''. The Trojan priest Sinon pointed out about his daughter's fate.]]
** Max said
that it was probably a trap...and was promptly strangled to death by a sea serpent sent by Poseidon, who was on the Achaeans' side. After that, they understandably got scared, and came to the conclusion his full name is "Max Wilson", despite that they'd risk the Gods' wrath if they refused to take it. In ''Troy'', there are no sea serpents, and none of the Trojans even question the wisdom of taking a giant wooden horse into their city walls after the enemy Achaeans all mysteriously disappear.
* Minor one
in ''Film/IntoTheWoods''. Rapunzel Module 1, he said that "Max" is actually the Baker's long lost sister, having been taken by the witch when he was a toddler. The Baker never finds this out in [[Theatre/IntoTheWoods the stage show]], and it's short for "Maxwell".
** Richard Chin/Chen from Module 1 is
the same case in as the film. one in Module 6; an elementary school teacher who's married to a fashion model. The PlotHole comes illustrations from the fact that the Narrator is a separate character in the stage show. For [[CompositeCharacter convenience purposes]] the Baker also serves as the Narrator in the film. And the film ends with the Baker narrating the story to his newborn son. But since he never finds out Rapunzel is his sister, it begs the question of how he knows this in narration.[[note]] Though there is a small possibility [[spoiler: since Rapunzel [[SparedByTheAdaptation survives in the film]], that she and the Baker eventually do reconcile some time after the events of the story]] - as the narration says a lot of things the Baker wasn't witness to, so it could be assumed that the narration we hear is him telling the story much later after getting the rest of the information.[[/note]]
* In the play version of ''Theatre/PerfectPie'', Marie's reluctance at going swimming is because she's afraid of having a seizure while she's in the water. In the movie adaptation she doesn't have seizures, leaving her fear of going swimming inexplicable.
* ''Virus: Day of Resurrection'' has a RaceAgainstTime to turn off a nuclear defense network from firing. In both the novel and the film there are two such systems, one in the USA and one in Russia. While the USA mission arrives too late, the novel implies the Soviet team ''is'' successful, thus no missiles hit North America. The film makes no such mention of the Soviet team, and ''total'' nuclear winter occurs; this making the hero's long walk from Washington to South America nothing sort of an outright ''miracle'' as he arrives with nary a hint of radiation poisoning.
software differs, however.



[[folder:Live-Action TV]]
* ''Series/GameOfThrones'':
** In the intro to the novel ''Literature/AGameOfThrones'', the last surviving Night's Watchman is Gared, who stays with the horses during the Others' attack and flees when he hears fighting. In the series, the sole survivor is Will, who we see come face-to-face with the White Walkers. How or why he survived is never explained.
** A similar event occurs in the Season 2 Finale: The White Walkers are shown looking at and walking past Sam, despite having no explained reason to leave him alive. In the prologue to ''Literature/AStormOfSwords'' (the chapter which this scene is drawn from), Sam is with the rest of the Night's Watch and doesn't explicitly come face to face with the Others.
** In "Mother's Mercy", the Night's Watch, led by Alliser Thorne, declare Jon Snow a traitor [[spoiler: and seemingly kill him]] for letting the Wildlings, the Night's Watch's long-time enemies, through the wall in exchange for their aid against the White Walkers. However, one episode prior, Thorne was in the perfect position to stop this from happening when the Wildlings showed up while Thorne was in command of Castle Black. If he thought letting the Wildlings through was such a terrible thing he could have just refused to open the gates and there'd be nothing Jon or them could do about it, but instead he lets them through only to turn on Jon for it in the next episode. In the books, Jon's decision to help the Wildlings wasn't the cause of the other watchmen betraying him, but rather his decision to aid Stannis against the Boltons, thereby compromising the Night's Watch's neutrality, a plot point that is dropped in the show.
** While they're following Sansa north in the entirely show-invented plotline, Brienne tells Pod that they won't be able to go through Moat Cailin, and so will have to go around it. However, Moat Cailin is such a valuable castle to hold precisely because ''there is no way around it'' - it is impassable swamp which only House Reed know how to navigate. This is made clear in the previous season, when the Boltons place huge importance on taking Moat Cailin from the Greyjoys for precisely this reason - Roose Bolton even notes that he had to smuggle himself back into the North by sea due to Moat Cailin being blocked to him.
** The show adds the fact that Cersei had a child from Robert that died in infancy. However, they keep the same prophesy that Cersei will have three children and the prophecy's tone suggesting she and Robert wouldn't have any children together. Cersei herself refers to the CanonForeigner as "my first boy" in Season 1 but to Joffrey as her "firstborn" in Season 4.
** In the books, Balon Greyjoy dies shortly after Melisandre and Stannis cast a spell to kill Stannis's many enemies, Balon included. This helps convince Stannis to trust Melisandre's power. In the show, Balon outlives Stannis, but Stannis still has the same confidence in Melisandre's magic.
** Speaking of Melisandre, in the books it is implied that Melisandre merely ''foresaw'' the deaths of [[spoiler: Robb Stark, Joffrey Baratheon and Balon Greyjoy]], and tricked Stannis into thinking she'd caused them through magic. The show drops this little detail, making it look like she actually did kill them. This can leave a viewer wondering why Melisandre doesn't just use her magic to kill all of Stannis' enemies. Sure, they'd need more kingsblood and/or sex, but it's not like they had no way of getting that....
** "Winter is Coming" has a small one that only becomes clear when it's revealed Lysa's letter was actually a ploy. In the books, Catelyn's reaction is to urge Ned to go, which plays perfectly into the schemer's expectation of the only person they know at Winterfell. In the show, she staunchly opposes it, meaning the schemer was just shooting in the dark.
** During their parley, Stannis declares his conflict with Renly will be settled at dawn, yet his fleet is still far out to sea the next day, meaning Stannis sailed in for the parley and back out without bringing his forces in close enough to catch anyone who might flee after Renly's murder, which he was clearly planning. In the books, the parley takes place between the two armies and Stannis only fails to capture those who flee because he lacks the cavalry to catch them.
** When Davos rows Melisandre ashore in "Garden of Bones", the two of them cross the open beach to a cave containing a locked gate and act as if it's blocking the only passage to Renly's camp, even though a camp the size of Renly's must have other approaches. In the novels this scene takes place in the bowels of Storm's End after Davos pilots Melisandre beneath the walls to bypass the ancient enchantments blocking the passage of her shadow assassin.
** Matthos (who is easily in his twenties) argues the Lord of Light's power by bringing up his answered childhood prayers for his father's safety, yet Melisandre and her red god are obviously a new influence at Stannis' court in "The North Remembers" judging by Maester Cressen's protests against her. In the books, Davos' twelve-year-old son Devan is a new convert to the Lord of Light, but his older boys still hold to the Seven.
** In the books, Summer and Shaggydog cannot protect Bran and Rickon during Theon's attack because they've been locked in the godswood because Shaggy bit Little Walder for roughhousing with Rickon. In the series, they're absent without explanation.
** In the books, Theon wakes to find Osha has killed a some guards and escaped with Bran and Rickon. This happens in the show too, but the night before Osha also presents herself sexually to Theon, a {{Fanservice}} add-on that actually only complicates the plan by forcing her to first sneak out of Theon's bed without waking him or alerting his bodyguards.
** Tyrion's clansmen are unseen during the Battle of Blackwater without explanation. In the books, they've been sent out to harry Stannis' advance through the Kingswood and are later credited with killing enough scouts to allow TheCavalry to surprise Stannis. This would be merely AdaptationExplanationExtrication, except that in the show Stannis' army arrives entirely by sea, removing any opportunity to harry him.
** During the show's Qarth arc, Daenerys goes from obviously on the run from the city's most powerful man to waltzing armed men into his bedchamber after barely killing the other half of the BigBadDuumvirate. Then she simply leaves, having annihilated the city's leadership. In the books, she's run out of the city by the warlocks after Xaro withdraws his patronage.
** After his break with them, Robb declares that the Karstark forces have marched "''home''", totally disregarding that the Greyjoys hold the border fortress of Moat Cailin, making it totally impossible for ''any'' northerners to march home. Retaking the Moat even becomes the main Bolton plotline in Season 4. In the novels, the Karstarks set off south and east to pillage the Riverlands in search of the Kingslayer instead.
** Robb decides to besiege Casterly Rock to raise morale and make the Lannisters engage him as if it's a brilliant new idea in Season 3, but judging from Robb going to the Crag and Jaime's guise as a thief from Ashemark, that's exactly where he ''was'' campaigning in Season 2. Assuming Oxcross is in the same place, Robb could probably have ''seen'' the Rock from the battlefield. In the books, this was Robb's initial plan but it was foiled by Balon's refusal to blockade the Rock by sea and Edmure's unexpected victory over Tywin at the Battle of the Fords, so his new plan is to restore his prestige by retaking the North.
** Arya says Rorge can't be on her kill list because she doesn't know his name, nevermind that her list has already memorably included "the Tickler", "the Hound", "the Red Woman". In the books proper names are never particularly important to her and she never targets Rorge even though she knows his name.
** In the books, Littlefinger uses Lysa's despised singer Marillion as his patsy for Lysa's murder. Unfortunately, the show already amputated Marillion's tongue in place of a random singer in "Fire and Blood" and neglected to furnish a replacement, making Littlefinger's plan quite uncharacteristically amateurish in order for Sansa to step up to save him.
** When Theon and Jeyne leap from the walls in the book, they only need to make it a few hundred yards to the safety of Stannis' siege lines if they survive. (It's actually Mors Umber, but nevermind.) In the show, Ramsay has just returned from slaughtering Stannis' army, leaving no force large enough to protect Theon and Sansa from Ramsay's army... and Ramsay ''loves'' hunting.
** Both House Tyrell and House Martell's heirs in the books (Willas and Arianne respectively) have been AdaptedOut in the show, leading to extinction of these bloodlines and nobody to rule Highgarden or Sunspear when Loras, Margaery, and Trystane are killed in Season 6. It's even odder in Season 2's "What Is Dead May Never Die" that Tyrion told Pycelle about planning to marry off Myrcella to Prince Doran's ''youngest'' son who is clearly Trystane and there was no mention of Doran's other children afterwards.
** In Season 5, Roose Bolton tells Ramsay that their position in the North is precarious, they are widely unpopular and he cites this as his justification for engaging Ramsay to Sansa, a fugitive in the eyes of his Lannister patrons. Roose's motivation for taking such a giant risk was that the Boltons needed legitimacy, and he kept the wedding so secret that he didn't invite any of the Northern lords, presumably waiting for Stannis' defeat for a public announcement. The popularity of the Starks is confirmed in stray comments made by smallfolk, and by Lyanna Mormont's message to Stannis yet in Season 6, it turns out that the Starks are not as popular as they once were, that the Boltons have the support of House Karstark who resent Robb Stark executing Rickard Karstark for killing child hostages and that Sansa herself is not quite popular as a result of her association with the Lannisters. In other words, the political context in the North was never dire enough for the Boltons to even need to risk burning his bridges with the Lannisters.
** Ramsay Bolton in Season 6 claims the title Warden of the North, and demands acknowledgment as such. He also insists that his name is Ramsay Bolton, yet it is apparently known among his supporters and several others that he married a wanted fugitive and is essentially biting the hand that fed him his legitimacy, and furthermore murdered Walda Frey, their principal Riverlands ally and another Crown puppet. Legally, Ramsay can't truly claim those titles and yet he still commands others to fight alongside him and refers to himself and uses it to command authority, compromising some of the rules of the feudal society that was established in the earlier seasons.
* ''Series/MysteryScienceTheater3000'' had on-and-off trouble with this, due to the format of the show: they had to trim out questionable content and pare down the films they riffed so that, in combination with the host segments, the show would only fill roughly 90 minutes of run time (in a two-hour time slot). The show's staff stressed that they tried not to artificially add to a film's poor quality with their edits, but it occasionally happens.
** The catastrophic Joe Don Baker vehicle ''Film/{{Mitchell}}'' was 97 minutes long, but was cut down to 70-75 minutes. One of the things cut out was the death of John Saxon's character Mr. Deaney, one of the film's primary antagonists. Despite what some [=MSTies=] have mistakenly assumed, though, Best Brains was not responsible for this one; the scene was already trimmed from the Lorimar TV print of the film they chose for riffing (explaining why they joked about Saxon's absence, as they don't pick on a movie for cuts they themselves made to it).
** This was actually averted in ''Sidehackers''. One of the scene that had to cut out due to content involved the [[DisposableWoman hero's girlfriend]] being [[RapeAsDrama brutally gang raped]] [[StuffedIntoTheFridge and killed]] by the antagonist and his lackeys. In order to explain why the main heroine suddenly disappears halfway through the film, one of the bots makes the following remark.
--->'''Crow:''' "For those of you following at home, Rita is dead."
** TheMovie also cuts some exposition from ''ThisIslandEarth''. And by some, we mean "''[=MST3K: The Movie=]'' is ''12 minutes shorter'' than the film it's riffing" (though that's mainly due to [[ExecutiveMeddling the studio believing]] average movie audiences wouldn't sit through a full 90 minutes).
** The deletion of Neville Brand's character from ''Film/AngelsRevenge'' causes a number of plot holes to crop up -- namely, why the female officer is part of the group, why the police never appear involved, and what did the girls do with all the cocaine they snagged at the beach.
* The TV adaptation of ''Discworld/GoingPostal'' skips the subplot about what happened to the previous postmasters by revealing they were killed by Reacher Gilt's banshee assassin. However, the only reason the Post Office is ''standing'' in the book is that Gilt doesn't see it as a threat; as soon as he does, he doesn't mess around killing postmasters, he burns the place to the ground. In addition, a rearrangement of scenes means that TV Gilt has to [[spoiler: kill Horsefry]] personally, when the man is visiting his office, rather than employing the hard-to-track Mr Gryle to swoop down and [[spoiler: kill him in his own home]] Despite the TV version retaining Ankh-Morpork's capable and determined Watch (and its bloodhound-like werewolf), this crime apparently goes unsolved.
** Talking of the Watch, Angua twice arrests Moist for breaking his parole by leaving the city, but for some reason there was no problem earlier when he took a horse to Sto Lat. (In the book, it's made clear he can leave the city as long as he's on Post Office business, which applies all three times.) It's also not clear why this is even Angua's job; Mr Pump is still his parole officer, and collects him when he actually tries to escape.
* In ''Literature/TheWorstWitch''
** Cackles Academy has a fair share of teachers that aren't seen and don't come into the story that much but the TV series shows that there are only four teachers at the school - Miss Cackle, Miss Hardbroom, Miss Bat and Miss Drill - yet in the second season a Miss Gimlett is mentioned as being the Year Head for the 2nd year girls but has moved away over the summer. Miss Gimlett was never mentioned or referred to before that episode and apparently never used the staff room. In the books we didn't know what Miss Gimlett taught since the only lessons the girls were ever shown having were potions and chanting but the TV show has Miss Cackle teaching spells and no other subjects, apart from PE so that begs the question what did this elusive Miss Gimlett teach before she left?
** Similarly the second season follows the third book's plot of having Mildred and Ethel banned from the Halloween celebrations after what happened last year. When the Grand Wizard sees Mildred he says straight from the book "are you not the girl who ''ruined'' the Halloween celebrations last year!" which creates a PlotHole. In the previous season, the episode "Sweet Talking Guys" added an original plot where the Grand Wizard visits the school with some apprentice wizards and ends up impressed by Mildred during a public speaking contest. So why would he have a problem with her being at the Halloween celebrations? Especially when he doesn't reference them at all in "Sweet Talking Guys".
** The same episode otherwise abverts this. Griselda Blackwood's only appearance in the books was Mildred tying her up and going to the Halloween celebrations in her place. In the TV series however, Griselda is expanded into one of Mildred's friends so keeping this intact would have created a PlotHole. So this role is given to Drucilla instead.
** The HalloweenEpisode keeps the book's plot point of having Miss Cackle and Miss Hardbroom not believing Mildred's story about the wicked witches' attempted invasion. They only start to believe her when Mildred mentions a woman that looks like Miss Cackle - and the latter reveals she has a twin sister. This works in the book because Mildred had turned the witches into snails and thus couldn't prove herself. But in the TV show, she just shrinks them - so you have to wonder why she doesn't open the box immediately so that the two believe her. Additionally Miss Drill has been involved in the TV series, rescuing Mildred from the woods. So the other teachers should have no reason ''not'' to believe Mildred with a member of staff vouching for her. What's more is that the witches got inside the school in the TV show and Miss Cackle got turned into a frog.
** Similar to the Miss Gimlett example above, the TwoTeacherSchool element creates minor plot holes in various episodes. With Miss Cackle, Hardbroom, Bat and Drill as the only teachers - there are plenty of instances of one teacher taking Mildred's class, and the other three wandering freely around the school. So who is taking the classes for the other years?
** Inverted in one case where the book had a PlotHole that the TV series fixed. In the first book Ethel is turned into a pig by Mildred but can still speak and so rats her out to Miss Hardbroom. The PlotHole comes in the third book when Ethel turns Mildred into a frog and Mildred can't speak to humans. In the TV series Ethel can't speak at all when she is turned into a pig, fixing the plot hole.
* The ''Film/AliceInWonderland1985'' tv miniseries:
** In the book, Alice tells the Blue Caterpillar that she was attempting to recite a poem earlier, but the words came out wrong (she does this while she's in the hall of doors). But in the movie, Alice didn't do this, making nonsense out of the line where she tells the caterpillar she did this.
** In the book, Alice first sees the Cheshire Cat in the Duchess's house. In the movie she first sees him after she's left the house. Later when the Cat appears in the sky at The Queen of Hearts's croquet ground, Alice tells everyone that she thinks the Cat belongs to the Duchess. But Alice didn't see the cat at the Duchess's house, so how would she know?
** When Alice starts growing at the Queen's court, she protests that she hasn't eaten a piece of mushroom or drunk anything. The problem is that in the movie's scene with the Caterpillar, Alice didn't learn what it was that would make her shorter or larger and just walked off without any mushroom after the caterpillar vanished.
* ''Series/TheWalkingDead'' accidentally created a PlotHole in the Governor's motivations due to the way Woodbury was depicted. In [[Comics/TheWalkingDead the comics]], Woodbury was not well equipped to handle the ZombieApocalypse and the Governor desired to move his people to the much safer prison. The TV series reversed this, making Woodbury a sanctuary and the prison less secure. This makes the Governor's vendetta against Rick's group seem rather pointless, especially given that he was fairly reasonable in his first encounter with Michonne and Andrea. He did eventually get a more plausible reason for his hatred -Revenge on Michonne for [[spoiler: stabbing him in the eye and killing his zombified daughter]]- but this was only after the conflict between their groups was well underway, and it's also made clear that even if Rick handed Michonne over to him as a peace offering, he'd destroy the prison anyway ForTheEvulz.
** Season 4 has attempted to fix this, [[spoiler: after the first assault on the prison fails the Governor kills most of his followers and burns down Woodbury in a rage. However, after he meets Lilly Chambler and her family and bonds with them, he once again begins seeking a safer home, and with Woodbury gone he's set his sights on the prison.]]
** The initially disproportionate personal vendetta goes for Michonne too. In both versions of the story, [[spoiler: Michonne waits, sword ready, in the Governor's quarters with the intention of settling a personal vendetta alone and where she could take her time with him]]. In the TV series this seems a bit unwarranted for a man that she knows as an affable leader she herself does not trust, who may or may not have [[spoiler: been behind Merle's orders to follow her unsuccessfully and coerce strangers back to Woodbury.]] In the comics, Michonne's personal vendetta stems from the Governor having [[spoiler: restrained and repeatedly raped her, and tortured and maimed her companions. While her destruction of the Governor's eye was not done through torture in the show, it was clearly along the lines of her intentions when she waited for him in his room, despite her not having nearly as much cause for such brutality as her comics counterpart.]]
* ''Franchise/PowerRangers'':
** In the ''Series/PowerRangersTurbo'' episode "Rally Ranger", the Rangers fight a [[MakeMyMonsterGrow giant-size]] [[EvilGenius Porto]] with just their Turbo Weapons. Not once does the thought occur to them to summon their [[HumongousMecha Turbo Zords]]. That's because the [[Series/GekisouSentaiCarranger Carranger]] episode this fight was taken from was the one before they gain their Mecha.
** Some series of ''Franchise/PowerRangers'' have it as a result of being more or less straight adaptations of their ''Franchise/SuperSentai'' source material. ''Series/PowerRangersMegaforce'' is a stand-out example, since the Rangers were [[{{Expy}} Expies]] of the original Series/MightyMorphinPowerRangers, even when ''Super Megaforce'' tried to adapt stories from ''Series/KaizokuSentaiGokaiger'' beat-for-beat. In particular, one episode has the Blue Ranger losing to a sword-wielding MonsterOfTheWeek, suffering a major hit to his pride, and undergoing TrainingFromHell to defeat the monster. This makes perfect sense in ''Gokaiger'', since its Blue Ranger is a swordsman with a lot of pride in his skill, but since ''Megaforce''[='s=] Blue is a HollywoodNerd, he ended up adopting Gokai Blue's personality for the duration of that episode just to make the plot work, then reverting back to normal for the rest of the series.
** ''Series/MightyMorphinPowerRangers'' might leave some older viewers scratching their heads at the fact that the Rangers all have [[HumongousMecha Zords]] and [[AnimalMotifs costume emblems]] based on [[EverythingsBetterWithDinosaurs dinosaurs]], even though they got their powers and equipment from [[MentorArchetype Zordon]]--a wise alien trapped in a time warp, who has no logical reason to be interested in extinct creatures from Earth's past. For that matter, how the hell does Zordon even know what dinosaurs ''look like''? And if he's from another planet, why does he have a Command Center on Earth with a stasis tube to contain his consciousness? Well, in ''Series/KyoryuSentaiZyuranger'', all of those things made perfect sense. The Rangers' mentor was an [[ReallySevenHundredYearsOld immortal]] human wizard named Barza, the Rangers themselves were warriors from an idyllic past [[OneMillionBC when humans and dinosaurs lived in perfect harmony]], and their vehicles were gifts from a race of godlike beings who took the forms of animals. The American redub replaced Barza with Zordon and cut out the prehistoric backstory, but forgot to explain why the Rangers and their mentor were obsessed with dinosaurs.
* The AgeLift done to Richard in the miniseries adaptation of ''Literature/ThePillarsOfTheEarth'' causes a few problems. In the book, he's only a child and dependent on his older sister Aliena when they're orphaned and lose their home, which causes them a few problems due to the misogynistic 12th century society they're thrown into, like a wool trader who refuses to do business with her. In the series Richard seems to be the same age as her, making one wonder why he doesn't step in during situations like this. Then again, [[TheLoad Richard]] doing something actually ''useful'' would be a huge OutOfCharacterMoment compared to his portrayal in the books.
* The 1980s adaptation of ''Literature/TheDayOfTheTriffids'' has a very mild one in the very last episode. The mysterious "comet debris" that caused mass blindness and a mysterious and deadly disease that almost wipes out the survivors were attributed to malfunctioning KillSats in the original book, which would have been quite plausible in the early 1960s, but the Outer Space Treaty banned the placing of weapons of mass-destruction in orbit even if anyone had wanted to do so.[[note]]Turns out that once you can put a satellite in orbit, it's only marginally more difficult and expensive to shoot one down.[[/note]] But when the BBC adapted the show in 1981 they decided to do a straight SettingUpdate, without changing this plot element. They get away with it because in both versions the viewpoint character is [[UnreliableNarrator only speculating from the point of view of a somewhat informed layman]], and what actually happened is left ambiguous.
* ''Literature/DoctorWhoNovelisations'':
** ''Doctor Who and the Space War'', the novelisation of "Frontier in Space", removes the twist {{Cliffhanger}} ending of the Doctor getting shot, but both ''Doctor Who and the Planet of the Daleks'' and "Planet of the Daleks" start with the Doctor near-fatally wounded.
** The adaptation of "The Robots of Death" has an utter howler when a character shows up to watch the Doctor being tortured, who was last encountered having been strangled to death.
* ''Series/ASeriesOfUnfortunateEvents'': "The Miserable Mill" story is changed so that the Baudelaires arrive at the titular mill after running away and are taken in as illegal employees by 'Sir' (the owner), rather than being assigned to him by Mr. Poe as they were in the book. This was probably done for [[PragmaticAdaptation pragmatic reasons]], as it is [[WillingSuspensionOfDisbelief hard to believe]] that even someone as stupid and incompetent as Poe could think assigning orphans to work at a lumber mill would be acceptable, but it does make Count Olaf's EvilPlan rather pointless in the TV show. Olaf, disguised as "Shirley T. Sinoit-Pécer" tries to convince Sir to pass the children into his care by [[spoiler: hypnotizing Klaus and making him cause an accident]]. As Sir has no guardianship over them in the show, he cannot legally sign them over to Olaf, and if Olaf merely wanted to kidnap them he didn't need Sir's permission to do that.

to:

[[folder:Live-Action TV]]
[[folder:Tabletop Games]]
* ''Series/GameOfThrones'':
''TabletopGame/DungeonsAndDragons'' has this happen between editions.
** In the intro to 3.5 player's handbook, a priest of Pelor, the novel ''Literature/AGameOfThrones'', the last surviving Night's Watchman quintessentially good deity of Greyhawk, is Gared, who stays with the horses during the Others' attack and flees when he hears fighting. In the series, the sole survivor is Will, who we see come face-to-face with the White Walkers. How or why he survived is never explained.
** A similar event occurs in the Season 2 Finale: The White Walkers are shown looking at and walking past Sam, despite having no explained reason to leave him alive. In the prologue to ''Literature/AStormOfSwords'' (the chapter
seen using a Symbol of Pain spell, which this scene is drawn from), Sam is with the rest of the Night's Watch and doesn't explicitly come face to face with the Others.
** In "Mother's Mercy", the Night's Watch, led by Alliser Thorne, declare Jon Snow a traitor [[spoiler: and seemingly kill him]] for letting the Wildlings, the Night's Watch's long-time enemies, through the wall in exchange for their aid against the White Walkers. However, one episode prior, Thorne
good aligned gods cannot grant. What happened was in the perfect position to stop this from happening when the Wildlings showed up while Thorne was in command of Castle Black. If he thought letting the Wildlings through was such a terrible thing he could have just refused to open the gates and there'd be nothing Jon or them could do about it, but instead he lets them through only to turn on Jon for it in the next episode. In the books, Jon's decision to help the Wildlings wasn't the cause of the other watchmen betraying him, but rather his decision to aid Stannis against the Boltons, thereby compromising the Night's Watch's neutrality, a plot point that is dropped in the show.
** While they're following Sansa north in the entirely show-invented plotline, Brienne tells Pod
that they won't be able to go through Moat Cailin, and so will have to go around it. However, Moat Cailin is such a valuable castle to hold precisely because ''there is no way around it'' - it is impassable swamp which only House Reed know how to navigate. This is made clear in the previous season, when the Boltons place huge importance on taking Moat Cailin reused some artwork from the Greyjoys for precisely this reason - Roose Bolton even notes that he had to smuggle himself back into 3.0 PHB of the North by sea due to Moat Cailin being blocked to him.priest using the pain aspect of the Symbol spell, which was originally an unaligned spell.
** Drow society in Forgotten Realms is based off of infravision, but 3.5 removed infravision.

** The show adds original CD&D supplement for the fact that Cersei had TabletopGame/{{Mystara}} setting's nation of Karameikos included a child from Robert that died in infancy. However, they keep three-paragraph summary of the same prophesy that Cersei will have three children and the prophecy's tone suggesting she and Robert wouldn't have any children together. Cersei herself refers content of an epic poem, roughly equivalent to the CanonForeigner as "my first boy" in Season 1 but to Joffrey as her "firstborn" in Season 4.
** In the books, Balon Greyjoy dies shortly after Melisandre and Stannis cast a spell to kill Stannis's many enemies, Balon included. This helps convince Stannis to trust Melisandre's power. In the show, Balon outlives Stannis, but Stannis still has the same confidence in Melisandre's magic.
** Speaking of Melisandre, in the books it is implied
real-world ''Iliad'', that Melisandre merely ''foresaw'' the deaths of [[spoiler: Robb Stark, Joffrey Baratheon and Balon Greyjoy]], and tricked Stannis into thinking she'd caused them through magic. The show drops this little detail, making it look like she actually did kill them. This can leave a viewer wondering why Melisandre doesn't just use her magic to kill all of Stannis' enemies. Sure, they'd need more kingsblood and/or sex, but it's not like they had no way of getting that....
** "Winter is Coming" has a small one that only becomes clear when it's revealed Lysa's letter was actually a ploy. In the books, Catelyn's reaction is to urge Ned to go, which plays perfectly into the schemer's expectation
underpins much of the only person they know at Winterfell. In native Traladaran culture's history and religion. When Karameikos was re-packaged for an AD&D audience, the show, she staunchly opposes it, three-paragraph summary was presented as ''the actual saga'', meaning the schemer it was just shooting in the dark.
** During their parley, Stannis declares his conflict with Renly will be settled at dawn, yet his fleet is still far out to sea the next day, meaning Stannis sailed in for the parley
no longer a poem, no longer exciting, and back out without bringing his forces in close no longer appealing enough to catch anyone who might flee after Renly's murder, which he was clearly planning. In justify the books, the parley takes place between the two armies and Stannis only fails to capture those who flee because he lacks the cavalry to catch them.
** When Davos rows Melisandre ashore in "Garden of Bones", the two of them cross the open beach to a cave containing a locked gate and act as if it's blocking the only passage to Renly's camp, even though a camp the size of Renly's must have other approaches. In the novels this scene takes place in the bowels of Storm's End after Davos pilots Melisandre beneath the walls to bypass the ancient enchantments blocking the passage of her shadow assassin.
** Matthos (who is easily in his twenties) argues the Lord of Light's power by bringing up his answered childhood prayers for his father's safety, yet Melisandre and her red god are obviously a new influence at Stannis' court in "The North Remembers" judging by Maester Cressen's protests against her. In the books, Davos' twelve-year-old son Devan is a new convert to the Lord of Light, but his older boys still hold to the Seven.
** In the books, Summer and Shaggydog cannot protect Bran and Rickon during Theon's attack because they've been locked in the godswood because Shaggy bit Little Walder for roughhousing with Rickon. In the series, they're absent without explanation.
** In the books, Theon wakes to find Osha has killed a some guards and escaped with Bran and Rickon. This happens in the show too, but the night before Osha also presents herself sexually to Theon, a {{Fanservice}} add-on that actually only complicates the plan by forcing her to first sneak out of Theon's bed without waking him or alerting his bodyguards.
** Tyrion's clansmen are unseen during the Battle of Blackwater without explanation. In the books, they've been sent out to harry Stannis' advance through the Kingswood and are later credited with killing enough scouts to allow TheCavalry to surprise Stannis. This would be merely AdaptationExplanationExtrication, except that in the show Stannis' army arrives entirely by sea, removing any opportunity to harry him.
** During the show's Qarth arc, Daenerys goes from obviously on the run from the city's most powerful man to waltzing armed men into his bedchamber after barely killing the other half of the BigBadDuumvirate. Then she simply leaves,
Traladarans' having annihilated the city's leadership. In the books, she's run out of the city by the warlocks after Xaro withdraws his patronage.
** After his break with them, Robb declares that the Karstark forces have marched "''home''", totally disregarding that the Greyjoys hold the border fortress of Moat Cailin, making
revered it totally impossible for ''any'' northerners to march home. Retaking the Moat even becomes the main Bolton plotline in Season 4. In the novels, the Karstarks set off south and east to pillage the Riverlands in search hundreds of the Kingslayer instead.
** Robb decides to besiege Casterly Rock to raise morale and make the Lannisters engage him as if it's a brilliant new idea in Season 3, but judging from Robb going to the Crag and Jaime's guise as a thief from Ashemark, that's exactly where he ''was'' campaigning in Season 2. Assuming Oxcross is in the same place, Robb could probably have ''seen'' the Rock from the battlefield. In the books, this was Robb's initial plan but it was foiled by Balon's refusal to blockade the Rock by sea and Edmure's unexpected victory over Tywin at the Battle of the Fords, so his new plan is to restore his prestige by retaking the North.
** Arya says Rorge can't be on her kill list because she doesn't know his name, nevermind that her list has already memorably included "the Tickler", "the Hound", "the Red Woman". In the books proper names are never particularly important to her and she never targets Rorge even though she knows his name.
** In the books, Littlefinger uses Lysa's despised singer Marillion as his patsy for Lysa's murder. Unfortunately, the show already amputated Marillion's tongue in place of a random singer in "Fire and Blood" and neglected to furnish a replacement, making Littlefinger's plan quite uncharacteristically amateurish in order for Sansa to step up to save him.
** When Theon and Jeyne leap from the walls in the book, they only need to make it a few hundred yards to the safety of Stannis' siege lines if they survive. (It's actually Mors Umber, but nevermind.) In the show, Ramsay has just returned from slaughtering Stannis' army, leaving no force large enough to protect Theon and Sansa from Ramsay's army... and Ramsay ''loves'' hunting.
** Both House Tyrell and House Martell's heirs in the books (Willas and Arianne respectively) have been AdaptedOut in the show, leading to extinction of these bloodlines and nobody to rule Highgarden or Sunspear when Loras, Margaery, and Trystane are killed in Season 6. It's even odder in Season 2's "What Is Dead May Never Die" that Tyrion told Pycelle about planning to marry off Myrcella to Prince Doran's ''youngest'' son who is clearly Trystane and there was no mention of Doran's other children afterwards.
** In Season 5, Roose Bolton tells Ramsay that their position in the North is precarious, they are widely unpopular and he cites this as his justification for engaging Ramsay to Sansa, a fugitive in the eyes of his Lannister patrons. Roose's motivation for taking such a giant risk was that the Boltons needed legitimacy, and he kept the wedding so secret that he didn't invite any of the Northern lords, presumably waiting for Stannis' defeat for a public announcement. The popularity of the Starks is confirmed in stray comments made by smallfolk, and by Lyanna Mormont's message to Stannis yet in Season 6, it turns out that the Starks are not as popular as they once were, that the Boltons have the support of House Karstark who resent Robb Stark executing Rickard Karstark for killing child hostages and that Sansa herself is not quite popular as a result of her association with the Lannisters. In other words, the political context in the North was never dire enough for the Boltons to even need to risk burning his bridges with the Lannisters.
** Ramsay Bolton in Season 6 claims the title Warden of the North, and demands acknowledgment as such. He also insists that his name is Ramsay Bolton, yet it is apparently known among his supporters and several others that he married a wanted fugitive and is essentially biting the hand that fed him his legitimacy, and furthermore murdered Walda Frey, their principal Riverlands ally and another Crown puppet. Legally, Ramsay can't truly claim those titles and yet he still commands others to fight alongside him and refers to himself and uses it to command authority, compromising some of the rules of the feudal society that was established in the earlier seasons.
* ''Series/MysteryScienceTheater3000'' had on-and-off trouble with this, due to the format of the show: they had to trim out questionable content and pare down the films they riffed so that, in combination with the host segments, the show would only fill roughly 90 minutes of run time (in a two-hour time slot). The show's staff stressed that they tried not to artificially add to a film's poor quality with their edits, but it occasionally happens.
** The catastrophic Joe Don Baker vehicle ''Film/{{Mitchell}}'' was 97 minutes long, but was cut down to 70-75 minutes. One of the things cut out was the death of John Saxon's character Mr. Deaney, one of the film's primary antagonists. Despite what some [=MSTies=] have mistakenly assumed, though, Best Brains was not responsible for this one; the scene was already trimmed from the Lorimar TV print of the film they chose for riffing (explaining why they joked about Saxon's absence, as they don't pick on a movie for cuts they themselves made to it).
** This was actually averted in ''Sidehackers''. One of the scene that had to cut out due to content involved the [[DisposableWoman hero's girlfriend]] being [[RapeAsDrama brutally gang raped]] [[StuffedIntoTheFridge and killed]] by the antagonist and his lackeys. In order to explain why the main heroine suddenly disappears halfway through the film, one of the bots makes the following remark.
--->'''Crow:''' "For those of you following at home, Rita is dead."
** TheMovie also cuts some exposition from ''ThisIslandEarth''. And by some, we mean "''[=MST3K: The Movie=]'' is ''12 minutes shorter'' than the film it's riffing" (though that's mainly due to [[ExecutiveMeddling the studio believing]] average movie audiences wouldn't sit through a full 90 minutes).
** The deletion of Neville Brand's character from ''Film/AngelsRevenge'' causes a number of plot holes to crop up -- namely, why the female officer is part of the group, why the police never appear involved, and what did the girls do with all the cocaine they snagged at the beach.
* The TV adaptation of ''Discworld/GoingPostal'' skips the subplot about what happened to the previous postmasters by revealing they were killed by Reacher Gilt's banshee assassin. However, the only reason the Post Office is ''standing'' in the book is that Gilt doesn't see it as a threat; as soon as he does, he doesn't mess around killing postmasters, he burns the place to the ground. In addition, a rearrangement of scenes means that TV Gilt has to [[spoiler: kill Horsefry]] personally, when the man is visiting his office, rather than employing the hard-to-track Mr Gryle to swoop down and [[spoiler: kill him in his own home]] Despite the TV version retaining Ankh-Morpork's capable and determined Watch (and its bloodhound-like werewolf), this crime apparently goes unsolved.
** Talking of the Watch, Angua twice arrests Moist for breaking his parole by leaving the city, but for some reason there was no problem earlier when he took a horse to Sto Lat. (In the book, it's made clear he can leave the city as long as he's on Post Office business, which applies all three times.) It's also not clear why this is even Angua's job; Mr Pump is still his parole officer, and collects him when he actually tries to escape.
* In ''Literature/TheWorstWitch''
** Cackles Academy has a fair share of teachers that aren't seen and don't come into the story that much but the TV series shows that there are only four teachers at the school - Miss Cackle, Miss Hardbroom, Miss Bat and Miss Drill - yet in the second season a Miss Gimlett is mentioned as being the Year Head for the 2nd year girls but has moved away over the summer. Miss Gimlett was never mentioned or referred to before that episode and apparently never used the staff room. In the books we didn't know what Miss Gimlett taught since the only lessons the girls were ever shown having were potions and chanting but the TV show has Miss Cackle teaching spells and no other subjects, apart from PE so that begs the question what did this elusive Miss Gimlett teach before she left?
** Similarly the second season follows the third book's plot of having Mildred and Ethel banned from the Halloween celebrations after what happened last year. When the Grand Wizard sees Mildred he says straight from the book "are you not the girl who ''ruined'' the Halloween celebrations last year!" which creates a PlotHole. In the previous season, the episode "Sweet Talking Guys" added an original plot where the Grand Wizard visits the school with some apprentice wizards and ends up impressed by Mildred during a public speaking contest. So why would he have a problem with her being at the Halloween celebrations? Especially when he doesn't reference them at all in "Sweet Talking Guys".
** The same episode otherwise abverts this. Griselda Blackwood's only appearance in the books was Mildred tying her up and going to the Halloween celebrations in her place. In the TV series however, Griselda is expanded into one of Mildred's friends so keeping this intact would have created a PlotHole. So this role is given to Drucilla instead.
** The HalloweenEpisode keeps the book's plot point of having Miss Cackle and Miss Hardbroom not believing Mildred's story about the wicked witches' attempted invasion. They only start to believe her when Mildred mentions a woman that looks like Miss Cackle - and the latter reveals she has a twin sister. This works in the book because Mildred had turned the witches into snails and thus couldn't prove herself. But in the TV show, she just shrinks them - so you have to wonder why she doesn't open the box immediately so that the two believe her. Additionally Miss Drill has been involved in the TV series, rescuing Mildred from the woods. So the other teachers should have no reason ''not'' to believe Mildred with a member of staff vouching for her. What's more is that the witches got inside the school in the TV show and Miss Cackle got turned into a frog.
** Similar to the Miss Gimlett example above, the TwoTeacherSchool element creates minor plot holes in various episodes. With Miss Cackle, Hardbroom, Bat and Drill as the only teachers - there are plenty of instances of one teacher taking Mildred's class, and the other three wandering freely around the school. So who is taking the classes for the other years?
** Inverted in one case where the book had a PlotHole that the TV series fixed. In the first book Ethel is turned into a pig by Mildred but can still speak and so rats her out to Miss Hardbroom. The PlotHole comes in the third book when Ethel turns Mildred into a frog and Mildred can't speak to humans. In the TV series Ethel can't speak at all when she is turned into a pig, fixing the plot hole.
* The ''Film/AliceInWonderland1985'' tv miniseries:
** In the book, Alice tells the Blue Caterpillar that she was attempting to recite a poem earlier, but the words came out wrong (she does this while she's in the hall of doors). But in the movie, Alice didn't do this, making nonsense out of the line where she tells the caterpillar she did this.
** In the book, Alice first sees the Cheshire Cat in the Duchess's house. In the movie she first sees him after she's left the house. Later when the Cat appears in the sky at The Queen of Hearts's croquet ground, Alice tells everyone that she thinks the Cat belongs to the Duchess. But Alice didn't see the cat at the Duchess's house, so how would she know?
** When Alice starts growing at the Queen's court, she protests that she hasn't eaten a piece of mushroom or drunk anything. The problem is that in the movie's scene with the Caterpillar, Alice didn't learn what it was that would make her shorter or larger and just walked off without any mushroom after the caterpillar vanished.
* ''Series/TheWalkingDead'' accidentally created a PlotHole in the Governor's motivations due to the way Woodbury was depicted. In [[Comics/TheWalkingDead the comics]], Woodbury was not well equipped to handle the ZombieApocalypse and the Governor desired to move his people to the much safer prison. The TV series reversed this, making Woodbury a sanctuary and the prison less secure. This makes the Governor's vendetta against Rick's group seem rather pointless, especially given that he was fairly reasonable in his first encounter with Michonne and Andrea. He did eventually get a more plausible reason for his hatred -Revenge on Michonne for [[spoiler: stabbing him in the eye and killing his zombified daughter]]- but this was only after the conflict between their groups was well underway, and it's also made clear that even if Rick handed Michonne over to him as a peace offering, he'd destroy the prison anyway ForTheEvulz.
** Season 4 has attempted to fix this, [[spoiler: after the first assault on the prison fails the Governor kills most of his followers and burns down Woodbury in a rage. However, after he meets Lilly Chambler and her family and bonds with them, he once again begins seeking a safer home, and with Woodbury gone he's set his sights on the prison.]]
** The initially disproportionate personal vendetta goes for Michonne too. In both versions of the story, [[spoiler: Michonne waits, sword ready, in the Governor's quarters with the intention of settling a personal vendetta alone and where she could take her time with him]]. In the TV series this seems a bit unwarranted for a man that she knows as an affable leader she herself does not trust, who may or may not have [[spoiler: been behind Merle's orders to follow her unsuccessfully and coerce strangers back to Woodbury.]] In the comics, Michonne's personal vendetta stems from the Governor having [[spoiler: restrained and repeatedly raped her, and tortured and maimed her companions. While her destruction of the Governor's eye was not done through torture in the show, it was clearly along the lines of her intentions when she waited for him in his room, despite her not having nearly as much cause for such brutality as her comics counterpart.]]
* ''Franchise/PowerRangers'':
** In the ''Series/PowerRangersTurbo'' episode "Rally Ranger", the Rangers fight a [[MakeMyMonsterGrow giant-size]] [[EvilGenius Porto]] with just their Turbo Weapons. Not once does the thought occur to them to summon their [[HumongousMecha Turbo Zords]]. That's because the [[Series/GekisouSentaiCarranger Carranger]] episode this fight was taken from was the one before they gain their Mecha.
** Some series of ''Franchise/PowerRangers'' have it as a result of being more or less straight adaptations of their ''Franchise/SuperSentai'' source material. ''Series/PowerRangersMegaforce'' is a stand-out example, since the Rangers were [[{{Expy}} Expies]] of the original Series/MightyMorphinPowerRangers, even when ''Super Megaforce'' tried to adapt stories from ''Series/KaizokuSentaiGokaiger'' beat-for-beat. In particular, one episode has the Blue Ranger losing to a sword-wielding MonsterOfTheWeek, suffering a major hit to his pride, and undergoing TrainingFromHell to defeat the monster. This makes perfect sense in ''Gokaiger'', since its Blue Ranger is a swordsman with a lot of pride in his skill, but since ''Megaforce''[='s=] Blue is a HollywoodNerd, he ended up adopting Gokai Blue's personality for the duration of that episode just to make the plot work, then reverting back to normal for the rest of the series.
** ''Series/MightyMorphinPowerRangers'' might leave some older viewers scratching their heads at the fact that the Rangers all have [[HumongousMecha Zords]] and [[AnimalMotifs costume emblems]] based on [[EverythingsBetterWithDinosaurs dinosaurs]], even though they got their powers and equipment from [[MentorArchetype Zordon]]--a wise alien trapped in a time warp, who has no logical reason to be interested in extinct creatures from Earth's past. For that matter, how the hell does Zordon even know what dinosaurs ''look like''? And if he's from another planet, why does he have a Command Center on Earth with a stasis tube to contain his consciousness? Well, in ''Series/KyoryuSentaiZyuranger'', all of those things made perfect sense. The Rangers' mentor was an [[ReallySevenHundredYearsOld immortal]] human wizard named Barza, the Rangers themselves were warriors from an idyllic past [[OneMillionBC when humans and dinosaurs lived in perfect harmony]], and their vehicles were gifts from a race of godlike beings who took the forms of animals. The American redub replaced Barza with Zordon and cut out the prehistoric backstory, but forgot to explain why the Rangers and their mentor were obsessed with dinosaurs.
* The AgeLift done to Richard in the miniseries adaptation of ''Literature/ThePillarsOfTheEarth'' causes a few problems. In the book, he's only a child and dependent on his older sister Aliena when they're orphaned and lose their home, which causes them a few problems due to the misogynistic 12th century society they're thrown into, like a wool trader who refuses to do business with her. In the series Richard seems to be the same age as her, making one wonder why he doesn't step in during situations like this. Then again, [[TheLoad Richard]] doing something actually ''useful'' would be a huge OutOfCharacterMoment compared to his portrayal in the books.
* The 1980s adaptation of ''Literature/TheDayOfTheTriffids'' has a very mild one in the very last episode. The mysterious "comet debris" that caused mass blindness and a mysterious and deadly disease that almost wipes out the survivors were attributed to malfunctioning KillSats in the original book, which would have been quite plausible in the early 1960s, but the Outer Space Treaty banned the placing of weapons of mass-destruction in orbit even if anyone had wanted to do so.[[note]]Turns out that once you can put a satellite in orbit, it's only marginally more difficult and expensive to shoot one down.[[/note]] But when the BBC adapted the show in 1981 they decided to do a straight SettingUpdate, without changing this plot element. They get away with it because in both versions the viewpoint character is [[UnreliableNarrator only speculating from the point of view of a somewhat informed layman]], and what actually happened is left ambiguous.
* ''Literature/DoctorWhoNovelisations'':
** ''Doctor Who and the Space War'', the novelisation of "Frontier in Space", removes the twist {{Cliffhanger}} ending of the Doctor getting shot, but both ''Doctor Who and the Planet of the Daleks'' and "Planet of the Daleks" start with the Doctor near-fatally wounded.
** The adaptation of "The Robots of Death" has an utter howler when a character shows up to watch the Doctor being tortured, who was last encountered having been strangled to death.
* ''Series/ASeriesOfUnfortunateEvents'': "The Miserable Mill" story is changed so that the Baudelaires arrive at the titular mill after running away and are taken in as illegal employees by 'Sir' (the owner), rather than being assigned to him by Mr. Poe as they were in the book. This was probably done for [[PragmaticAdaptation pragmatic reasons]], as it is [[WillingSuspensionOfDisbelief hard to believe]] that even someone as stupid and incompetent as Poe could think assigning orphans to work at a lumber mill would be acceptable, but it does make Count Olaf's EvilPlan rather pointless in the TV show. Olaf, disguised as "Shirley T. Sinoit-Pécer" tries to convince Sir to pass the children into his care by [[spoiler: hypnotizing Klaus and making him cause an accident]]. As Sir has no guardianship over them in the show, he cannot legally sign them over to Olaf, and if Olaf merely wanted to kidnap them he didn't need Sir's permission to do that.
years.



[[folder:Radio]]
* In the radio version of ''Radio/NewDynamicEnglish'', Max said that he's born in UsefulNotes/Portland and moved to UsefulNotes/SanFrancisco when he's in college, despite that in the software he said that he lived in San Francisco "all his life".
** Max also has a son, while in the software's Module 2 Matrix Vocabulary, he said he has a daughter, and later children in Module 4. [[FridgeHorror One can wonder about his daughter's fate.]]
** Max said that his full name is "Max Wilson", despite that in Module 1, he said that "Max" is short for "Maxwell".
** Richard Chin/Chen from Module 1 is the same as the one in Module 6; an elementary school teacher who's married to a fashion model. The illustrations from the software differs, however.
[[/folder]]

[[folder:Tabletop Games]]
* ''TabletopGame/DungeonsAndDragons'' has this happen between editions.
** In the 3.5 player's handbook, a priest of Pelor, the quintessentially good deity of Greyhawk, is seen using a Symbol of Pain spell, which good aligned gods cannot grant. What happened was that they reused some artwork from the 3.0 PHB of the priest using the pain aspect of the Symbol spell, which was originally an unaligned spell.
** Drow society in Forgotten Realms is based off of infravision, but 3.5 removed infravision.
** The original CD&D supplement for the TabletopGame/{{Mystara}} setting's nation of Karameikos included a three-paragraph summary of the content of an epic poem, roughly equivalent to the real-world ''Iliad'', that underpins much of the native Traladaran culture's history and religion. When Karameikos was re-packaged for an AD&D audience, the three-paragraph summary was presented as ''the actual saga'', meaning it was no longer a poem, no longer exciting, and no longer appealing enough to justify the Traladarans' having revered it for hundreds of years.
[[/folder]]
7th Mar '17 3:18:18 PM gb00393
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Added DiffLines:

** In Season 5, Roose Bolton tells Ramsay that their position in the North is precarious, they are widely unpopular and he cites this as his justification for engaging Ramsay to Sansa, a fugitive in the eyes of his Lannister patrons. Roose's motivation for taking such a giant risk was that the Boltons needed legitimacy, and he kept the wedding so secret that he didn't invite any of the Northern lords, presumably waiting for Stannis' defeat for a public announcement. The popularity of the Starks is confirmed in stray comments made by smallfolk, and by Lyanna Mormont's message to Stannis yet in Season 6, it turns out that the Starks are not as popular as they once were, that the Boltons have the support of House Karstark who resent Robb Stark executing Rickard Karstark for killing child hostages and that Sansa herself is not quite popular as a result of her association with the Lannisters. In other words, the political context in the North was never dire enough for the Boltons to even need to risk burning his bridges with the Lannisters.
** Ramsay Bolton in Season 6 claims the title Warden of the North, and demands acknowledgment as such. He also insists that his name is Ramsay Bolton, yet it is apparently known among his supporters and several others that he married a wanted fugitive and is essentially biting the hand that fed him his legitimacy, and furthermore murdered Walda Frey, their principal Riverlands ally and another Crown puppet. Legally, Ramsay can't truly claim those titles and yet he still commands others to fight alongside him and refers to himself and uses it to command authority, compromising some of the rules of the feudal society that was established in the earlier seasons.
27th Feb '17 7:30:14 PM Darth_Marth
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Added DiffLines:

* ''Series/ASeriesOfUnfortunateEvents'': "The Miserable Mill" story is changed so that the Baudelaires arrive at the titular mill after running away and are taken in as illegal employees by 'Sir' (the owner), rather than being assigned to him by Mr. Poe as they were in the book. This was probably done for [[PragmaticAdaptation pragmatic reasons]], as it is [[WillingSuspensionOfDisbelief hard to believe]] that even someone as stupid and incompetent as Poe could think assigning orphans to work at a lumber mill would be acceptable, but it does make Count Olaf's EvilPlan rather pointless in the TV show. Olaf, disguised as "Shirley T. Sinoit-Pécer" tries to convince Sir to pass the children into his care by [[spoiler: hypnotizing Klaus and making him cause an accident]]. As Sir has no guardianship over them in the show, he cannot legally sign them over to Olaf, and if Olaf merely wanted to kidnap them he didn't need Sir's permission to do that.
27th Feb '17 5:32:48 PM TheMightyHeptagon
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* ''Film/{{Watchmen}}'' gives a rather weak explanation as to why The Comedian was killed. In [[ComicBook/{{Watchmen}} the comic]] it's laid out that it's because he discovered the secret island where [[spoiler: Veight/Ozymandias was conducting genetic experiments allowing for the creation of the giant squid in the climax]] but since this part is removed from the film and the ending is changed, it doesn't appear. Rather the reason given is simply that he discovered [[spoiler: Veight/Ozymandias]]'s plan after being ordered by the government watchlist to investigate him, and that's all the explanation we get.

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* ''Film/{{Watchmen}}'' ''Film/{{Watchmen}}'':
** The movie
gives a rather weak explanation as to why The the Comedian was killed. In [[ComicBook/{{Watchmen}} the comic]] it's laid out that it's because he discovered the secret island where [[spoiler: Veight/Ozymandias Veidt/Ozymandias was conducting genetic experiments allowing for the creation of the giant squid monster in the climax]] climax]], but since this part is removed from the film and the ending is changed, it doesn't appear. Rather Rather, the reason given is simply that he discovered [[spoiler: Veight/Ozymandias]]'s Veidt/Ozymandias]]'s plan after being ordered by the government watchlist to investigate him, and that's all the explanation we get.get.
** In both the movie and the book, [[spoiler: Ozymandias]] plans to avert a coming war between the United States and the Soviet Union by orchestrating a horrific massacre and blaming it on a non-human outsider, giving the two countries a common enemy to unite against. In the book, he does this by attacking New York with a genetically engineered monster to fool the people of the world into believing that Earth has been invaded by aliens. In the movie, he destroys the world's major cities with a series of energy blasts, and stages them to look like Doctor Manhattan has turned against humanity. The problem? Almost everyone on Earth knows that Doctor Manhattan is an '''American citizen''', and that he's been a loyal operative of the US military for decades--making it far more likely that the rest of the world would just hold America responsible for the massacres rather than joining with them.
25th Feb '17 2:00:58 AM LinTaylor
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* In ''Anime/MagicalGirlLyricalNanohaAs'', Chrono's staff Durandal was created by Gil Graham to fight the Book of Darkness. Due to Graham being AdaptedOut, the movie changed it to [[AncestralWeapon originally belonging to his father]]. All well and good, were it not for the fact that Chrono's father died via exploding spaceship while on duty (meaning he would have had his weapon with him), which makes you wonder how in the hell Lindy got a hold of it.

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* In ''Anime/MagicalGirlLyricalNanohaAs'', Chrono's staff Durandal was created by Gil Graham to fight the Book of Darkness. Due to Graham being AdaptedOut, the movie changed it to [[AncestralWeapon originally belonging to his father]]. All well and good, were it not for the fact that Chrono's father died via exploding spaceship while on duty (meaning he would have had his weapon with him), which makes you wonder how in the the
hell Lindy got a hold of it.it.
* ''LightNovel/FullMetalPanic'' has a small version of this: Gauron's twin assassins mistakenly pronounce Kaname's surname Chidori using the Chinese reading of the characters. This makes sense in the original light novels and the anime adaptation, where they're Chinese; it's less logical in the manga adaptation ''Full Metal Panic! Sigma'', which [[RaceLift makes them]] ambiguously Caucasian {{Gothic Lolita}}s.
23rd Feb '17 10:48:13 AM lluewhyn
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***An even bigger plot-hole would be the beginning of the movie. In the book, a rather complicated series of events shows that the Quidditch Tournament is over, and many of the wizards get very drunk in celebration. Some of the more muggle-prejudiced ones begin to use magic to harass the muggles on site. Barty Crouch Jr. then gets angry at the sight of this group because he knows that several of its members were former Death-Eaters and he believes that they have no business celebrating when they forsook Voldemort. He thus summons the Dark Mark. Many of the attendees are confused, especially when they discover that the wand was used by Barty Crouch Sr.'s house elf. To simplify this chain of events for the movie, all of this is replaced with Death-Eaters simply attacking the tournament and everyone fleeing in terror. This brings up various problems including: 1. Why are Death-Eaters attacking the Quidditch tournament? Do they hate the game? 2. Aren't the Death Eaters supposedly reformed or in Azkaban? 3. Why are thousands of (presumably) competent wizards fleeing from a dozen or so Death Eaters? 4. Along with #2, doesn't this attack and the Dark Mark make the claim of Voldemort's return seem a *lot* more plausible?
15th Jan '17 9:44:37 AM VoxAquila
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* ''Virus: Day of Resurrection'' has a RaceAgainstTime to turn off a nuclear defense network from firing. In both the novel and the film there are two such systems, one in the USA and one in Russia. While the USA mission arrives too late, the novel implies the Soviet team ''is'' successful, thus no missiles hit North America. The film makes no such mention of the Soviet team, and ''total'' nuclear winter occurs; this making the hero's long walk from Washington to South America nothing sort of an outright ''miracle'' as he arrives with nary a hint of radiation poisoning.
4th Jan '17 2:44:07 PM DaibhidC
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** The adaptation also completely removes the board of directors and makes Gilt the sole owner of the company. That means that his main objective is now to drive his own business into the ground for no apparent reason instead of it being a massive scam.
28th Dec '16 5:03:11 AM DavidCowie
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* In ''Franchise/{{Transformers}} comics, transformers with the ability to transform into biological animals (including humans) themselves as humans are known as "Pretenders, who are fitted with special external armor shells so that they can do this when normal bots can't. In ''Film/TransformersRevengeOfTheFallen'' however, the decepticon "Alice"'s ability to disguise herself as Sam's classmate seems to come out of nowhere, especially considering the audience was explicitly shown how both mini-cons and normal bots scan their Alt-mode's in the first film, and there is nothing to indicate they can do this on anything non-mechanical.

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* In ''Franchise/{{Transformers}} ''Franchise/{{Transformers}}'' comics, transformers with the ability to transform into biological animals (including humans) themselves as humans are known as "Pretenders, "Pretenders", who are fitted with special external armor shells so that they can do this when normal bots can't. In ''Film/TransformersRevengeOfTheFallen'' however, the decepticon "Alice"'s ability to disguise herself as Sam's classmate seems to come out of nowhere, especially considering the audience was explicitly shown how both mini-cons and normal bots scan their Alt-mode's in the first film, and there is nothing to indicate they can do this on anything non-mechanical.
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