!!Series-Wide:
* SugarWiki/AwesomeMusic: Robert Zemeckis said in an interview that he felt the story wouldn't stand up on its own, so he told composer Alan Silvestri to make the music as big and memorable as possible to make up for it. [[EarWorm And you know...he may have been right]].
** "Back In Time," "Power Of Love," and especially "Doubleback" deserve special mention!
** And "Johnny B. Goode" too. "Earth Angel" as well: doubles as Heartwarming Music.
** Alan Silvestri's [[http://www.youtube.com/watch?v=zLN4g2S6X2A score for the train sequence]] in Part III is nothing short of brilliant. It uses the standard BTTF leitmotifs as a baseline; it throws in a drum beat that sounds like a train chugging; it intertwines the action themes, the tense themes, the love themes, the Western themes; and it ends with pure ''power''.
* BetterOnDVD: Parts II and III actually make greater sense when watched back-to-back.
* CrazyAwesome: None other than Doc Brown.
* EnsembleDarkhorse: "CPR Guy" from Part II. And for a short time in the fandom, the scarecrow that Marty runs over in Part I.
** Red the bum, who calls Marty a "crazy drunk driver" upon his return to 1985 in Part I, and a "crazy drunk pedestrian" in 1985-A in Part II.
* EvilIsSexy: [[TheDarkChick Spike]] from Griff's gang in Part II.
* FanCommunityNickname: Backies.
* FirstInstallmentWins: The first is ''iconic''. The second and third are good, but definitely not remembered like number one.
* HilariousInHindsight: Creator/RobertZemeckis and Creator/StevenSpielberg's first concept for the time machine was not a [=DeLorean=]. Originally, the idea was that it would be a highly-scientific laser array that sent Marty back to the past. To get him [[TitleDrop back to the future]], Doc Brown originally was going to put him in a refrigerator during an A-Bomb test. Spielberg vetoed the concept back then out of fear that kids would climb into abandoned refrigerators and become trapped. [[Film/IndianaJonesAndTheKingdomOfTheCrystalSkull A couple of decades later, however...]]
* TheProblemWithLicensedGames: Played straight by the infamously awful games released for the NES and Genesis. Averted by the Telltale game and ''Super Back to the Future Part II'' for the [[SuperNintendoEntertainmentSystem Super Famicom]], which sadly [[NoExportForYou was only released in Japan]].
* SomeAnvilsNeedToBeDropped: The "Don't let your pride get the best of you" aesop they drill into your head in Parts 2 and 3. It's {{Anvilicious}}, but it is surprising how may people actually do put themselves into situations just to prove themselves to others.
* SugarWiki/VisualEffectsOfAwesome: The Time Machine itself, from the fire trails to taking off into the sky at the end of the first film. The second movie pioneered a computer controlled camera to make complicated panning shots with Michael J. Fox playing three roles at a time, and you can't tell any difference.
* WhatDoYouMeanItsForKids: Remember the joy of watching these films when you were a kid? Remember the scene where the second lead is ''gunned down by Libyan terrorists''? They sure don't make 'em like they used to. On the other hand, when Marty found himself in 1955, he made it a point to try and save Doc from his future fate... [[spoiler:and succeeds; it was more of an extremely delayed DisneyDeath.]] There's also Marty's plan to get George and Lorraine together at the dance involved him faking a rape attempt on his own mother, which was then broken up by a real rape attempt from Biff.
-->"If my calculations are correct, when this baby hits 88 miles per hour, you're gonna see some serious [[PrecisionFStrike shit]]!"
** As such, it was refreshing to see that line appear in the Telltale video game intact.
** The first sequel isn't much better, starting with a GroinAttack on Marty Junior. Of course, the cherry on top is the alternate 1985 where Biff is a CorruptCorporateExecutive who murdered George in cold blood, forced Lorraine into marriage and breast implants, sits in a jacuzzi with naked women, and has turned Hill Valley into a hellhole.
** Part III has Buford hanging Marty, threatening Clara with rape, and attempting a slow death by bullet on Doc. Plus there's Doc's (implied) one night stand with Clara.
** Amusingly, this trope was why Creator/{{Disney}} turned down the first film, as they thought it was too raunchy, whereas many other studios thought it ''wasn't raunchy enough'' (this was the time of teen sex comedies like ''Film/{{Porkys}}'' and ''Film/RevengeOfTheNerds'').

!!Part I:
* AcceptableEthnicTargets: The Libyans.
* AngstWhatAngst: Marty's mother pretty much shrugs off her AttemptedRape, and the fact that the man who attempted to rape her is working for the family thirty years later doesn't seem to cause her any noticeable distress.
* CoveredUp: Many younger people are first exposed to [[ChuckBerry "Johnny B. Goode"]] and [[http://en.wikipedia.org/wiki/Earth_Angel "Earth Angel"]] through this movie, unaware of the originals.
* EndingFatigue: The film appears as if it is going to end at least twice before it actually does...
* FunnyAneurysmMoment:
** Before he was going to travel 25 years into the future by himself, Doc mentions that he'd get to find out who'd win the next 25 World Series games. Then in ''Part II'', we see the horrific results of someone using future sports knowledge.
** The use of Middle Eastern terrorists as non-serious, throwaway villains in a ''family movie''. [[TheWarOnTerror Doesn't seem so innocent now, does it?]]
* GeniusBonus: Biff and his goons are very intimidated by the Starlighters, saying "We don't want to mess with no reefer addicts." To many viewers, knowing that marijuana is not addictive and does not cause violent behavior, this may make them seem like cowards. Those familiar with the time period, though, will know that it was the era of ReeferMadness and the goons had just bought into the propaganda. May double as a ParentalBonus.
* HarsherInHindsight: Watching Creator/MichaelJFox jam on guitar is a little sad knowing he can't anymore... [[SubvertedTrope Or]] [[MomentOfAwesome maybe]] [[HeartwarmingMoment he]] [[http://www.youtube.com/watch?v=P8Y-PdD1TbA can?]]
** The angry Libyan terrorists shooting Doc Brown are less funny after the West Berlin disco bombing of 1986 and the bombing of Pan-Am flight 103 in 1989, both committed directly by or on orders of the Libyan government,
* HilariousInHindsight: "Gimme a Pepsi Free." That whole exchange is also a good example of WhosOnFirst.
** In the "Making Of" documentary, Michael J. Fox expresses interest in traveling back in time to become a cowboy. Then, in Part III...
** Doc says his [=DeLorean=] is electrically powered. In canon, this is non-sense because you can clearly hear an internal combustion engine which sometimes fails to start up. The need for gasoline becomes a plot point in the third movie. Fast forward to October 2011 when the [=DeLorean=] Motor Company announces the [[http://jalopnik.com/5850023/this-is-a-brand-new-all+electric-delorean DMCEV]] which actually ''is'' electrically powered. It runs on batteries instead of a 1.21GW nuclear reactor, though.
* MemeticMutation:
** ONE POINT TWENTY-ONE GIGAWATTS!?
*** What the hell's a gigawatt?!
** November 12, 1955. [[http://giveupinternet.com/2010/11/12/never-forget-november-12-1955-pic/ NEVER FORGET]].
** OCTOBER 21, 2015, ''NOT'' (Insert date here)!!
** "It's your cousin Marvin."
** "Great Scott!"
** "Roads? Where we're going, we won't need roads."
* MoralEventHorizon: Biff crossed it when [[spoiler:[[AttemptedRape he tried to rape Lorraine in 1955.]]]]
* MundaneMadeAwesome: [[http://www.youtube.com/watch?v=fwixq7fff-Q George ordering a milk. Chocolate.]]
* SacredCow: Regardless of people's opinions of the [[BaseBreaker later movies]], the first is widely regarded as one of the best time travel movies of all time.
* SleeperHit: ''No one'' expected the movie to become as big as it did. Robert Zemekis openly admitted he was just hoping it would break even and the final bit with the Delorean flying and "something's got to be done about your kids!" was meant as a joke on Marty having just changed the past for his parents. Fox recalled being informed about the movie being a hit and was pleased, but they had to reiterate that it was a BIG hit.
* SpecialEffectFailure: The Bobs were never thrilled with the effect used to show Marty's hand fading from existence.
* TheyJustDidntCare: Not the movie, but the 2010 HD transfer used on the Blu-ray and re-released DVD. (Like DigitalDestruction, too, but minus the "digital" part.) The end credits are totally messed up: three-fourths the width they should be, way off-center, and listing to the left. It's as if the scanner was bumped out of alignment and something tried to autocorrect it without any human noticing. Those who recall Parts II and III getting misframed [=DVDs=] in 2002 may be wondering if Universal Studios Home Entertainment can get anything right; however, unlike that case, they're not fixing anything, and refuse to admit it's even wrong, over two years later.
* TheWoobie: George, before he TookALevelInBadass.
!!Part II:
* BigLippedAlligatorMoment: What exactly WAS the point of Marty and Doc running back and forth on an empty road at ''night'' when they'd gone back to 1955 again and Doc was explaining their plan? Couldn't he have just told Marty what they needed to do while standing still?
** It could just be RuleOfFunny.
* HarsherInHindsight: In Part II, the ''USA Today'' in 2015 talks of the U.S. preparing for ''Queen'' Diana's visit. Unfortunately, in 2015, she will have been dead for 18 years. Then again, that also assumes Elizabeth II isn't around in 2015. As of 2014, she still is.
** As mentioned in the example for the first movie, seeing an aged-looking Michael J. Fox struggling with his guitar might be a bit disconcerting to watch.
* HeartwarmingInHindsight: The [=McFlys=], apparently an average suburban American family in 2015, can still manage to find time to eat a (re-hydrated) pizza together. Yes it's the setup for an [[ActingForTwo Acting For Three]] situation; no that doesn't detract.
* HilariousInHindsight:
** Even though JapanTakesOverTheWorld by 2015, the Toyota (formerly Studebaker) dealership bizarrely now sells Pontiacs. Pontiac folded in 2009. However, before Pontiac went under, they did the Matrix/Vibe crossover car project... with Toyota. Zemeckis was in the ballpark...
** When Marty first arrives back in the alternate 1985, he tries to enter his bedroom through the window and crawl into his bed, only to find out that an African-American family is now living in his house and is none too pleased with their bedroom intruder. This was kind of funny originally, but has become absolutely hilarious due to the similarities between it and a [[MemeticMutation memetically mutated]] bedroom intruder incident. Yes, [[https://www.youtube.com/watch?v=EzNhaLUT520 Marty's climbin' in yo windows, he's snatching yo people up.]]
** Also, one of the newspaper's "Newsline" items refers to a female President. The way things are shaping up, that can only mean one thing...
*** [[ComicallyMissingThePoint Hillary Clinton?]]
*** Now that Obama's been elected to a second term, the only way there'll be a female President in 2015 will be if Obama and enough male people in the presidential line of succession died. Or if there's some sort of coup d'etat between now and then.
** Borderline example: a broadcast has [[ButtMonkey the Cubs]] [[EveryYearTheyFizzleOut finally winning]] [[Usefulnotes/{{Baseball}} the World Series]]. The adversary is the "Florida Gators", as Florida was the biggest state outside the MLB... and now they have 2 teams!
** As of 2012, just three years before the fictional setting in the movie, there IS now an MLB team that adopted Miami into its name.
** The thought of videogames with handheld controllers becoming considered as lame as "a baby's toy" could easily come true after the release of the [[{{Xbox 360}} Kinect]].
* MagnificentBastard: Biff. He may not be ''too'' smart, but with one simple plan from an older (and more experienced) Biff to help his younger self, he starts an empire from successful "gambling" that allows him to start several companies (most highly nuclear power plants that generate enough pollutant to require a waste reclamation sub-industry; hmmm). Considering how he claims he "owns the police," he can certainly manipulate a lot, and he's definitely a bastard.
* MemeticMutation: To a lesser extent than most ''[=BttF=]'' memes, but the [[https://www.youtube.com/watch?v=k9ll4GWTiq8 Wallet Guy's lines are eminently quotable]].
** "Shark still looks fake", is a frequent snark used when watching the ''Film/{{Jaws}}'' films.
* MoralEventHorizon: Biff himself definitely crosses it when he [[spoiler: kills George and becomes Lorraine's abusive rapist husband]] after becoming rich through the [[TimelineAlteringMacGuffin Gray's Sports Almanac]]. Even though this is an alternate timeline that is later rectified, knowing that he even had the potential for it is enough. Thankfully, in the actual timeline he ''doesn't'' stoop to such lows.
* NewerThanTheyThink: Although it seems like hoverboards should be a staple of sci-fi as old as jetpacks and flying cars, which have both been in stories since at least the 1930s, this is actually what introduced them.
** This might have something to do with skateboards in general being NewerThanTheyThink, with short skateboards like the one Marty rides gaining popularity in the late 1970's.
*** Popularity, perhaps, but not its invention. The skateboard was invented in the 40s. By surfers. Based on a [[IncrediblyLamePun hover board that works on water]].
* NightmareFuel / MoodWhiplash: In the space of a few minutes we go from their colorful, {{Zeerust}}y vision of the future to an utter CrapsackWorld where presumably all of America has become a WretchedHive out of ''Film/MadMax''.
* OneSceneWonder: "Wallet Guy."
** Mr. Fujitsu, Future Marty's boss. You can tell the actor was enjoying himself.
--->"[[ChewingTheScenery MC]]'''[[LargeHam FLYYYYYYYYYYYY]]!'''"
* SpecialEffectsFailure: All the scenes of past and present characters interacting with each other were well done, except when 1955 Biff tosses the sports almanac to 2015 Biff in his garage.

!!Part III:
* CriticalResearchFailure: a major plot point has Clara and Doc bonding over their love of Creator/JulesVerne literature. Then, when he says he has to leave because he's a time traveler, she believes the story is just him taking her love of Verne books to make up an insulting BS excuse for why he's leaving her. Except Literature/TheTimeMachine was by Creator/HGWells, not Jules Verne. Verne never wrote a time travel plot in his entire career, and she would have known that.
* GeniusBonus: When the Colt salesman tries to get Marty to shoot the Peacemaker, he forces it into his left-hand (causing the first shot to miss completely, being Marty's weak hand). The Colt Single Action Army was actually originally designed to be fired left-handed while riding a horse.
** Marty uses a Frisbie pie tin like a Frisbee. This actually is how the toy was invented and got that name.
* HilariousInHindsight:
** The first movie had a subplot about electing a black man for mayor. The Colt salesman above previously appeared in another WildWest movie [[Film/BlazingSaddles about a black man for a sheriff.]]
** Towards the end of the film, Seamus muses about [[VideoGame/TeamFortress2 trading a gun for a new hat]]. Needless to say, the clip can be found on YouTube with the title "[[http://www.youtube.com/watch?v=lDwp4YySw0o Team Fortress 2 in a Nutshell]]".
* MoralEventHorizon: This trope caused a scene to be removed from the film. Originally, the movie was to have contained a scene where Buford Tannen, ancestor of Biff, shoots and kills Marshall Strickland in front of the lawman's son. According to screenwriter Bob Gale, the scene was removed because it was felt that after Buford is seen committing such a deed, it doesn't seem right that he not die (and he ''can't'' die, seeing as he will need to live long enough to extend the family line).
** The scene made it into the novelization of the movie, however. And the Marshall's son grew up with a strong sense of discipline, and made sure it got instilled in all his kids. So Buford just made life hell for all his descendants in general, and Biff in particular.
** It's also referenced and possibly canonised in the TelltaleGames sequel.
* RelationshipSue: Clara, to her detractors. Who would believe a woman in her 30s and a man in his 60s could fall instantly in love? Clara's main purpose is to be Doc's love interest and drive his decisions, thus influencing the outcome of the plot.
* TheScrappy: Clara, for creating a RomanticPlotTumor. Although her CharacterizationMarchesOn in the [[WesternAnimation/BackToTheFuture animated series]].
* StrangledByTheRedString: The film discusses this in regards to Doc and Clara's relationship. After going back to 1885, Marty shows Doc a picture of his future tombstone, which contains a mention of "his beloved Clara", though Doc doesn't know who she is, even though he's supposed to be killed in three days. After finding out who Clara is and that he's supposed to be meeting her Doc and Marty discuss it. Marty believes it's possible, but Doc, being a man of science, refuses.
-->'''Marty''': Well, Doc, now we know who Clara is.
-->'''Doc''': Marty. It's impossible. The idea that I could fall in LoveAtFirstSight? It's romantic nonsense. There's no scientific rationale to that.
-->'''Marty''': (Laughing) C'mon, Doc, it's not science. You meet the right girl, it just hits ya; [[CallBack it's like lightning]].

!!The Animated Series:
* HilariousInHindsight: One episode has Marty go by alias of Jimmy Olsen. David Kaufman, who voices Marty, would later go on to voice JimmyOlsen in [[WesternAnimation/SupermanTheAnimatedSeries several]] [[JusticeLeagueDoom animated]] [[WesternAnimation/SupermanVsTheElite productions]].
* RescuedFromTheScrappyHeap: Clara, for some of her detractors.
* RetroactiveRecognition: Creator/JoshKeaton voiced Jules.

!!The [[Pinball/BackToTheFuture Pinball Machine]]:
* TheProblemWithLicensedGames: Instead of doing anything interesting with time travel, time paradoxes, hoverboards, or getting the [=DeLorean=] up to 88 MPH, Creator/DataEastPinball slapped ''BTTF'' artwork on a generic pinball table loaded with {{Spelling Bonus}}es, threw in a few songs from Music/HueyLewisAndTheNews and Music/ZZTop, then cashed the checks. No wonder MichaelJFox refused to license his likeliness for the game.
* TheyWastedAPerfectlyGoodPlot

!!The Ride:
* HarsherInHindsight: The direct-to-video special ''The Secrets of the ''Back to the Future'' Trilogy'' plugs Back to the Future: The Ride when Kirk Cameron informs a young boy that Universal will not make a ''Back to the Future Part IV'', but the series will "live on" through the ride.
** The PopUpTrivia track on the ''Back to the Future Part III'' DVD ends with a similar plug.

!!Telltale Game:
* AccidentalAesop: The ending of Episode 5 is sort of the logical conclusion to the entire series and films. [[spoiler: Screwing around with the timeline keeps fucking things up til you have ''three'' older Marty's begging young Marty for help, all from different timelines. At that point, Doc just shrugs and tells Marty to ignore them. ''Now'' is important.]]
** It's actually brought up several times throughout all five episodes.
* BrokenBase: There is a certain friction that occurs between those who are longtime fans of the ''Back to the Future'' franchise and those who are longtime fans of the Telltale Games company.
* FanonDiscontinuity: To main die-hard fans of the original trilogy, this game might as well not exist.
* JerkassWoobie: Even after everything, it's hard not to feel kinda bad for [[spoiler: 1931!Edna]] when Marty breaks [[spoiler: her up with Emmett]].
** And then [[spoiler:Crazy Mary!Edna]]. HumorousInsanity aside, it's hard not to pity exactly what TheSlowPath, guilt, and loneliness have done to her.
* [[JustHereForGodzilla Just Here for the Plot]]: Many non-gamers have taken interest in the game strictly for the ''Back to the Future'' story line -- much to the chagrin of the more avid gamers who are, overall, disappointed with the game play of the series.
* MagnificentBastard: Marty shapes up into a heroic version through the game.
* MoralEventHorizon: (Episode 3) [[spoiler: Edna Strickland]] could have passed for an [[TheScrappy extremely obnoxious]] WellIntentionedExtremist until [[spoiler:she has her husband, Citizen Brown, tortured and brainwashed at the end of Episode 3]].
* PlayerPunch: [[spoiler: Citizen Brown's possible FaceHeelTurn.]]
** [[spoiler: Seeing Citizen Brown die after being ran over by Edna.]]
* RescuedFromTheScrappyHeap: Jennifer stops being a ShallowLoveInterest and gains some actual personality traits.
* TheScrappy: Edna Strickland, though this is intentional.
* TheWoobie: The Citizen Brown timeline in Episode 3. Everyone seems on the verge of a nervous crackup due to the {{Dystopia}} of alternate Hill Valley, Marty seems like he's panicking about 86% of the time, and the only halfway ''normal'' person is a {{Delinquent}} who would probably be a child psychologist's field day. [[spoiler: Even Brown himself comes off as a TragicHero.]]