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* The Moorwen from ''Film/{{Outlander}}'' has bright green blood.
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* The Moorwen from ''Film/{{Outlander}}'' ''Film/{{Outlander|2008}}'' has bright green blood.
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* In ''Film/AliceInWonderland2010'' the Jabberwocky's blood is purple.
* ''Franchise/{{Alien}}'':
** The [[Characters/AlienMain Xenomorphs]] have yellowy-green, [[BloodyMurder highly acidic blood that can burn through steel]]. In the later movies, the blood is green instead, possibly as a result of morphing with human DNA. A reasonable theory, however, would be that the acid doesn't actually have the same purpose as blood -- it's more of a defense mechanism that makes its victims reluctant to kill it.
** The androids have milky white fluid inside them instead of blood.
** Ripley 8 in ''Film/AlienResurrection'' is a HalfHumanHybrid due to a cloning mishap. Her blood is a human red but it's also corrosive, though to a much lesser extent than a purebred Xenomorph.
** The [[Characters/AlienCovenant Neomorphs]] in ''Film/AlienCovenant'' have yellow blood. It's not acidic, though.
** And the Engineers' blood in ''Film/{{Prometheus}}'' appears to be a light green color.
* Many viewers mistakenly assume that the Penguin in ''Film/BatmanReturns'' has greenish-black blood, since he's seen spitting up a substance of that color in his death scene. However, we also see him bleeding red blood from his bat bite wounds, and according to the crew members, it's supposed to be bile, and it can be seen trickling out of his mouth at multiple points in the film, it just intensified after he fell into a pool of toxic waste.
* ''Film/BladeII'': Caused by Executive Meddling from the censors. For some reason they needed to have some of the characters such as the (non-Reaper) vampire Damaskinos bleed green to get an R rating, even if there's gallons upon gallons of red-coloured gore anyway.
* In 1978's ''The Blue Stigma'' aka ''Blue Christmas'' aka ''Blood Type: Blue'', a huge spike in UFO sightings coincides with the people involved suddenly having their blood turn completely blue and their emotions based in anger seemingly wiped away. It is some kind of invasion? Does it have something to do with a music band's strange predictions of an upcoming apocalyptic event where Nazism would rise from the ashes and sweep the world? [[spoiler:No one knows, but that doesn't stop the world's governments from making internment camps and pulling a FinalSolution in the end.]]
* ''{{Film/Critters}}'': The Crites have green blood.
* [[spoiler:The Strangers]] from ''Film/DarkCity1998'' melt into goo or turn red and dissolve into flakes when they die; the [[spoiler:dead human bodies they use as vessels]] have black blood.
* ''Film/TheDarkCrystal'': The death of All-Maudra Mayrin seems to indicate Gelfling blood is pink. However, all of the comics depict their blood as deep red like that of humans.
* In ''Film/DemonKnight'', the Collector and his minions' blood is green.
* In ''The Devil's Rain'', the members of the satanic cult bleed green or brown blood after they've surrendered their souls to Satan.
* Averted in ''Film/District9'', where the InsectoidAliens bleed a scarlet red. Possibly done to show that despite their appearance, they are not monstrous at all. Zigzagged with [[spoiler:Wikus]], who at one point has a nosebleed of a black fluid and vomits up black goo, but still ''bleeds'' red.
* Buckets of black and green Deadite blood get thrown around in the ''Franchise/EvilDead'' movies.
* ''Film/TheEyeCreatures'': The eponymous Eye Creatures have very thick, blackish brownish blood. It looks very sickening.
* ''Film/TheFifthElement'': Diva Plavalaguna, the alien opera singer, has royal blue blood.
* ''Film/FlashGordon1980'':
** Ming the Merciless has dark green blood.
** The prince Ming stabs in the first court scene has blueish-purple blood.
** When Klytus, Ming's Dragon, gets ImpaledWithExtremePrejudice on a bunch of spikes, his entire body melts into black fluid.
** General Kala's blood is also black, although she doesn't melt.
** The Arborian who dies of the HandInTheHole trope has pale green goo on his stung arm, but it's unclear if it's meant to be his blood or the creature's venom.
* ''Film/Fortress1992'': The cyborgs that appear in the film, such as the [[MechaMooks Strike Clones]], bleed a blue liquid.
* ''Film/FreddysDeadTheFinalNightmare'': Freddy bleeds green when he slices his fingers off.
* Not quite aliens, but one of the first hints that the employees of the Titty Twister in ''Film/FromDuskTillDawn'' aren't human is a close-up of a knife which was just used to stab one of them. Instead of blood, it's covered in a translucent goo.
* The ''Film/{{Gamera}}'' series features numerous examples:
** Gamera himself has blood that ranges in colour from bright green to somewhere between bluish-green and teal.
** [[Film/GameraVsBarugon Barugon]]'s flesh and blood are both purple.
** In ''Film/GameraVsGyaos'', Gyaos has very pale purple blood that he sheds in great quantities after Gamera bites him in the neck during the final battle. The Space Gyaos introduced in ''Film/GameraVsGuiron'', much like Barugon, has purple flesh and blood.
* ''Film/GodsOfEgypt'': Gods have liquid gold in their veins instead of blood.
* ''Franchise/{{Godzilla}}'':
** ''Film/GodzillaVsMechagodzilla'': The Simians' blood is a grayish-green color.
** Strangely, the [[Characters/GodzillaTheGodzillas Heisei incarnation of Godzilla]] bleeds green blood in ''Film/TheReturnOfGodzilla'' and ''Godzilla vs. Biollante'', but his blood color was changed to red afterwards.
** ''Film/GodzillaVsBiollante'': [[Characters/{{Godzilla}} Biollante]] has green blood, possibly due to her chlorophyll.
** ''Film/GodzillaAndMothraTheBattleForEarth'': When Godzilla digs into Battra's flesh, he starts bleeding mustard-yellow blood all over him.
** ''Film/GodzillaVsDestoroyah'': Destoroyah has lime green or yellow blood. He spits or bleeds huge amounts of it in the later phases of the final battle. As a side effect of his meltdown, Godzilla's blood changes colour, ranging from red to orange to ''white'' in the latter stages of the final battle.
** ''Franchise/MonsterVerse'': There's quite a few examples.
*** ''Film/Godzilla2014'': The [[Characters/MonsterVerseMUTO MUTOs]] bleed a thick, dark-looking blood, described in the novelization as being like sticky ichor.
*** ''Film/GodzillaKingOfTheMonsters2019'': A couple cases. When Mothra stabs [[Characters/MonsterVerseRodan Rodan]] with her stinger, magma can be seen oozing out of his sternum, and special features confirm that Rodan has literal magma for blood as one of the physical adaptations that allow him to survive while sleeping inside an active volcano. [[Characters/MonsterVerseKingGhidorah Ghidorah]][[spoiler:, who unlike the other Titans is an ''actual'' alien]], bleeds black blood, which the novelization describes as similar to oil.
*** ''Film/GodzillaVsKong'': The Warbats and skullcrawler have bright green blood.
* The Tao Tie from ''Film/TheGreatWall'' bleed green blood, befitting their emerald-jade appearance.
* From ''Film/GreenLantern2011'' when a freaked-out Hal is trying to help a dying Abin Sur:
-->'''Hal:''' Hey-hey-hey, listen, we're gonna get you to a hospital, okay? Okay? One th-th-that carries...purple blood.
* The aliens from ''Film/TheGreenSlime'': killing them is a bad idea because the puddles of light green blood will eventually regenerate into numerous more creatures.
* ''Film/Gremlins1984'': The [[Characters/GremlinsMogwaiAndGremlins Gremlins]] bleed (often copious amounts of) green goo, whereas the Mogwai bleed red.
* ''Film/HalloweenTheCurseOfMichaelMyers'': [[spoiler:Michael bleeds yellow-green blood while Tommy beats him with a pipe]].
* ''Franchise/{{Hellboy}}'':
** The blood of [[StupidJetpackHitler Nazi cyborg ninja]] Karl Ruprect Kroenen from ''Film/Hellboy2004'', as a result of his [[AgeWithoutYouth great age]] and [[CyberneticsEatYourSoul grotesque mechanization]], has long since dried out, leaving his veins filled with an inert powder as fine as dust. Also in the ''Hellboy'' movies (and [[WesternAnimation/HellboyAnimated animated movies]], but not the comics), Abe Sapien has blue blood.
** In ''Film/HellboyIITheGoldenArmy'', the elven royalty has greyish yellow blood.
* ''Film/TheHollowChild'': The Hollow Ones it turns out have black blood, as one more sign they aren't really human.
* ''Film/IndependenceDay'': The [[Characters/IndependenceDay alien pilot]] Grey kills in the first film is bleeding bluish-purple BloodFromTheMouth.
** ''Film/IndependenceDayResurgence'': In the sequel however, an injured alien that gets decapitated bleeds green, and [[spoiler:the Queen]] likewise bleeds green slime.
* Downplayed in ''Film/It2017'' and ''Film/ItChapterTwo''. IT's blood appears to be standard human blood, but what makes it weird is that it floats in mid-air rather than falling.
* In Disney's ''Film/JohnCarter'', Martians have blue blood. Despite all references to their blood in [[Literature/JohnCarterOfMars the books]] indicating that it was red.
* In ''Film/Leprechaun4InSpace'', the Leprechaun goes into outer space and teams up with an alien princess. The princess looks just like a sexy blonde human woman (think Anna Nicole Smith with a very upper-class American accent); but then the human characters happen upon some samples of her blood...and they're emerald-green!
* ''Franchise/MarvelCinematicUniverse'':
** Zehobereians like Gamora bleed green blood. [[spoiler:In ''Film/AvengersInfinityWar'', when Thanos throws Gamora to her death in Vormir, there is a shot of her body with greenish blood around her head. This is contrasted when Natasha Romanoff suffers the same fate in ''Film/AvengersEndgame'', except this time the blood is the very human red.]]
** Used as a BaitAndSwitch in ''Film/CaptainMarvel2019''. The titular character is seen with blue blood in the opening scene, suggesting that she is an alien. [[spoiler:The blood actually belongs to someone else, as Carol Danvers is a human and does have red blood.]]
* Whenever aliens are blown up in the ''Film/MenInBlack'' films we see strangely-colored fluids. Mikey's blood is bright blue. Jack Jeebs' is green.
* The Moorwen from ''Film/{{Outlander}}'' has bright green blood.
* The {{Kaiju}} from ''Film/PacificRim'' bleed blue when stabbed, slashed, gouged, plasma blasted, or otherwise maimed. Which happens a lot. Too bad the blood's [[BloodyMurder toxic as all hell]], though.
* The Tall Man in ''Film/{{Phantasm}}'' gets his hand caught in a door at one point, and the boy cuts off his fingers with a blade. They bleed yellow; the director noted on the commentary that most test audiences were shocked at the unusual color.
* The flying monsters from ''Film/PitchBlack'' have bluish-gray blood.
* The ''Franchise/{{Predator}}s'' from the films of the same name have fluorescent yellow/green blood that glows in the dark. As Schwarzenegger famously says in the first film:
-->'''Dutch:''' If it bleeds, we can kill it.
* ''Film/PoultrygeistNightOfTheChickenDead'': The chicken zombies have green blood.
* ''{{Film/Skyline}}'': The aliens bleed dark purple blood.
* One of the princes in ''Film/{{Stardust}}'' has literal BlueBlood. Unknown if it's just because he's royalty, or if all inhabitants of the magical world have such blood, since nobody else in the movie is seen bleeding. WordOfGod states the decision for the color was made to avoid an "R" rating, with the added benefit of being a [[VisualPun visual gag]] for [[BlueBlood the character]].
* In ''Film/StarTrekVITheUndiscoveredCountry'', Klingon blood is shown to be Pepto-Bismol pink. Likely done to avoid an R-rating as it ends up being splattered all along the walls of the ship. Also in the movie, there's an inversion where an apparent Klingon's regular red blood leads to the revelation that it's actually a human in a {{Rubber Forehead|Aliens}} disguise. In the original theatrical edit of the movie, the unmasking scene was cut, [[SeriesContinuityError making the scene seem like a bizarre oversight]].
* In ''Film/TheThing1982'', blood samples are taken from all the characters and exposed to heat to test which one is the shapeshifting alien. The alien blood, it turns out, is capable of ''leaping around the room as an independent organism''. The character who proposed and carried out the test did it because he figured that the blood might well do that, as severed pieces had previously been observed operating independently.
* Most of the Graboid blood seen in the ''Film/{{Tremors}}'' films is an orangish-red color, just different enough from the maroon-red of human blood to avert an R rating.
* In ''Film/TheWatch2012'', the aliens' blood is a green goo which (according to Bob) has the feel and texture of human cum.
* In ''The Wesley's Mysterious File'', Fong Tin-Ai is a HumanAlien who looks like an average Asian woman (played by Rosamund Kwan)... but bleeds blue.
* In ''Film/TheWitches1990'', most of the witches' blood is green when they are killed as mice, although some red blood is seen on the knives and cleavers the hotel staff use to kill them.
* In ''Film/TheWorldsEnd'', the alien robot replacements for the townspeople all have blue ink-like "blood".
* ''Film/Deadpool2'': If you doubted [[Characters/XMenFilmSeriesXForce Shatterstar]] is telling the truth when he says he is an alien, we get confirmation once he unfortunately skydives into the blades of a helicopter, resulting in green blood splattering everywhere.
* ''{{Film/Xtro}}'': Sam's quadruped alien form appears to have orange and thick, almost gelatinous blood, most evident when he is accidentally hit by the couple's car, and the driver examines his wound. His second alien form has black blood.
* In ''Film/YamatoTakeru'', the [[{{Orochi}} Yamata no Orochi]] has lime-green blood.
----
* ''Franchise/{{Alien}}'':
** The [[Characters/AlienMain Xenomorphs]] have yellowy-green, [[BloodyMurder highly acidic blood that can burn through steel]]. In the later movies, the blood is green instead, possibly as a result of morphing with human DNA. A reasonable theory, however, would be that the acid doesn't actually have the same purpose as blood -- it's more of a defense mechanism that makes its victims reluctant to kill it.
** The androids have milky white fluid inside them instead of blood.
** Ripley 8 in ''Film/AlienResurrection'' is a HalfHumanHybrid due to a cloning mishap. Her blood is a human red but it's also corrosive, though to a much lesser extent than a purebred Xenomorph.
** The [[Characters/AlienCovenant Neomorphs]] in ''Film/AlienCovenant'' have yellow blood. It's not acidic, though.
** And the Engineers' blood in ''Film/{{Prometheus}}'' appears to be a light green color.
* Many viewers mistakenly assume that the Penguin in ''Film/BatmanReturns'' has greenish-black blood, since he's seen spitting up a substance of that color in his death scene. However, we also see him bleeding red blood from his bat bite wounds, and according to the crew members, it's supposed to be bile, and it can be seen trickling out of his mouth at multiple points in the film, it just intensified after he fell into a pool of toxic waste.
* ''Film/BladeII'': Caused by Executive Meddling from the censors. For some reason they needed to have some of the characters such as the (non-Reaper) vampire Damaskinos bleed green to get an R rating, even if there's gallons upon gallons of red-coloured gore anyway.
* In 1978's ''The Blue Stigma'' aka ''Blue Christmas'' aka ''Blood Type: Blue'', a huge spike in UFO sightings coincides with the people involved suddenly having their blood turn completely blue and their emotions based in anger seemingly wiped away. It is some kind of invasion? Does it have something to do with a music band's strange predictions of an upcoming apocalyptic event where Nazism would rise from the ashes and sweep the world? [[spoiler:No one knows, but that doesn't stop the world's governments from making internment camps and pulling a FinalSolution in the end.]]
* ''{{Film/Critters}}'': The Crites have green blood.
* [[spoiler:The Strangers]] from ''Film/DarkCity1998'' melt into goo or turn red and dissolve into flakes when they die; the [[spoiler:dead human bodies they use as vessels]] have black blood.
* ''Film/TheDarkCrystal'': The death of All-Maudra Mayrin seems to indicate Gelfling blood is pink. However, all of the comics depict their blood as deep red like that of humans.
* In ''Film/DemonKnight'', the Collector and his minions' blood is green.
* In ''The Devil's Rain'', the members of the satanic cult bleed green or brown blood after they've surrendered their souls to Satan.
* Averted in ''Film/District9'', where the InsectoidAliens bleed a scarlet red. Possibly done to show that despite their appearance, they are not monstrous at all. Zigzagged with [[spoiler:Wikus]], who at one point has a nosebleed of a black fluid and vomits up black goo, but still ''bleeds'' red.
* Buckets of black and green Deadite blood get thrown around in the ''Franchise/EvilDead'' movies.
* ''Film/TheEyeCreatures'': The eponymous Eye Creatures have very thick, blackish brownish blood. It looks very sickening.
* ''Film/TheFifthElement'': Diva Plavalaguna, the alien opera singer, has royal blue blood.
* ''Film/FlashGordon1980'':
** Ming the Merciless has dark green blood.
** The prince Ming stabs in the first court scene has blueish-purple blood.
** When Klytus, Ming's Dragon, gets ImpaledWithExtremePrejudice on a bunch of spikes, his entire body melts into black fluid.
** General Kala's blood is also black, although she doesn't melt.
** The Arborian who dies of the HandInTheHole trope has pale green goo on his stung arm, but it's unclear if it's meant to be his blood or the creature's venom.
* ''Film/Fortress1992'': The cyborgs that appear in the film, such as the [[MechaMooks Strike Clones]], bleed a blue liquid.
* ''Film/FreddysDeadTheFinalNightmare'': Freddy bleeds green when he slices his fingers off.
* Not quite aliens, but one of the first hints that the employees of the Titty Twister in ''Film/FromDuskTillDawn'' aren't human is a close-up of a knife which was just used to stab one of them. Instead of blood, it's covered in a translucent goo.
* The ''Film/{{Gamera}}'' series features numerous examples:
** Gamera himself has blood that ranges in colour from bright green to somewhere between bluish-green and teal.
** [[Film/GameraVsBarugon Barugon]]'s flesh and blood are both purple.
** In ''Film/GameraVsGyaos'', Gyaos has very pale purple blood that he sheds in great quantities after Gamera bites him in the neck during the final battle. The Space Gyaos introduced in ''Film/GameraVsGuiron'', much like Barugon, has purple flesh and blood.
* ''Film/GodsOfEgypt'': Gods have liquid gold in their veins instead of blood.
* ''Franchise/{{Godzilla}}'':
** ''Film/GodzillaVsMechagodzilla'': The Simians' blood is a grayish-green color.
** Strangely, the [[Characters/GodzillaTheGodzillas Heisei incarnation of Godzilla]] bleeds green blood in ''Film/TheReturnOfGodzilla'' and ''Godzilla vs. Biollante'', but his blood color was changed to red afterwards.
** ''Film/GodzillaVsBiollante'': [[Characters/{{Godzilla}} Biollante]] has green blood, possibly due to her chlorophyll.
** ''Film/GodzillaAndMothraTheBattleForEarth'': When Godzilla digs into Battra's flesh, he starts bleeding mustard-yellow blood all over him.
** ''Film/GodzillaVsDestoroyah'': Destoroyah has lime green or yellow blood. He spits or bleeds huge amounts of it in the later phases of the final battle. As a side effect of his meltdown, Godzilla's blood changes colour, ranging from red to orange to ''white'' in the latter stages of the final battle.
** ''Franchise/MonsterVerse'': There's quite a few examples.
*** ''Film/Godzilla2014'': The [[Characters/MonsterVerseMUTO MUTOs]] bleed a thick, dark-looking blood, described in the novelization as being like sticky ichor.
*** ''Film/GodzillaKingOfTheMonsters2019'': A couple cases. When Mothra stabs [[Characters/MonsterVerseRodan Rodan]] with her stinger, magma can be seen oozing out of his sternum, and special features confirm that Rodan has literal magma for blood as one of the physical adaptations that allow him to survive while sleeping inside an active volcano. [[Characters/MonsterVerseKingGhidorah Ghidorah]][[spoiler:, who unlike the other Titans is an ''actual'' alien]], bleeds black blood, which the novelization describes as similar to oil.
*** ''Film/GodzillaVsKong'': The Warbats and skullcrawler have bright green blood.
* The Tao Tie from ''Film/TheGreatWall'' bleed green blood, befitting their emerald-jade appearance.
* From ''Film/GreenLantern2011'' when a freaked-out Hal is trying to help a dying Abin Sur:
-->'''Hal:''' Hey-hey-hey, listen, we're gonna get you to a hospital, okay? Okay? One th-th-that carries...purple blood.
* The aliens from ''Film/TheGreenSlime'': killing them is a bad idea because the puddles of light green blood will eventually regenerate into numerous more creatures.
* ''Film/Gremlins1984'': The [[Characters/GremlinsMogwaiAndGremlins Gremlins]] bleed (often copious amounts of) green goo, whereas the Mogwai bleed red.
* ''Film/HalloweenTheCurseOfMichaelMyers'': [[spoiler:Michael bleeds yellow-green blood while Tommy beats him with a pipe]].
* ''Franchise/{{Hellboy}}'':
** The blood of [[StupidJetpackHitler Nazi cyborg ninja]] Karl Ruprect Kroenen from ''Film/Hellboy2004'', as a result of his [[AgeWithoutYouth great age]] and [[CyberneticsEatYourSoul grotesque mechanization]], has long since dried out, leaving his veins filled with an inert powder as fine as dust. Also in the ''Hellboy'' movies (and [[WesternAnimation/HellboyAnimated animated movies]], but not the comics), Abe Sapien has blue blood.
** In ''Film/HellboyIITheGoldenArmy'', the elven royalty has greyish yellow blood.
* ''Film/TheHollowChild'': The Hollow Ones it turns out have black blood, as one more sign they aren't really human.
* ''Film/IndependenceDay'': The [[Characters/IndependenceDay alien pilot]] Grey kills in the first film is bleeding bluish-purple BloodFromTheMouth.
** ''Film/IndependenceDayResurgence'': In the sequel however, an injured alien that gets decapitated bleeds green, and [[spoiler:the Queen]] likewise bleeds green slime.
* Downplayed in ''Film/It2017'' and ''Film/ItChapterTwo''. IT's blood appears to be standard human blood, but what makes it weird is that it floats in mid-air rather than falling.
* In Disney's ''Film/JohnCarter'', Martians have blue blood. Despite all references to their blood in [[Literature/JohnCarterOfMars the books]] indicating that it was red.
* In ''Film/Leprechaun4InSpace'', the Leprechaun goes into outer space and teams up with an alien princess. The princess looks just like a sexy blonde human woman (think Anna Nicole Smith with a very upper-class American accent); but then the human characters happen upon some samples of her blood...and they're emerald-green!
* ''Franchise/MarvelCinematicUniverse'':
** Zehobereians like Gamora bleed green blood. [[spoiler:In ''Film/AvengersInfinityWar'', when Thanos throws Gamora to her death in Vormir, there is a shot of her body with greenish blood around her head. This is contrasted when Natasha Romanoff suffers the same fate in ''Film/AvengersEndgame'', except this time the blood is the very human red.]]
** Used as a BaitAndSwitch in ''Film/CaptainMarvel2019''. The titular character is seen with blue blood in the opening scene, suggesting that she is an alien. [[spoiler:The blood actually belongs to someone else, as Carol Danvers is a human and does have red blood.]]
* Whenever aliens are blown up in the ''Film/MenInBlack'' films we see strangely-colored fluids. Mikey's blood is bright blue. Jack Jeebs' is green.
* The Moorwen from ''Film/{{Outlander}}'' has bright green blood.
* The {{Kaiju}} from ''Film/PacificRim'' bleed blue when stabbed, slashed, gouged, plasma blasted, or otherwise maimed. Which happens a lot. Too bad the blood's [[BloodyMurder toxic as all hell]], though.
* The Tall Man in ''Film/{{Phantasm}}'' gets his hand caught in a door at one point, and the boy cuts off his fingers with a blade. They bleed yellow; the director noted on the commentary that most test audiences were shocked at the unusual color.
* The flying monsters from ''Film/PitchBlack'' have bluish-gray blood.
* The ''Franchise/{{Predator}}s'' from the films of the same name have fluorescent yellow/green blood that glows in the dark. As Schwarzenegger famously says in the first film:
-->'''Dutch:''' If it bleeds, we can kill it.
* ''Film/PoultrygeistNightOfTheChickenDead'': The chicken zombies have green blood.
* ''{{Film/Skyline}}'': The aliens bleed dark purple blood.
* One of the princes in ''Film/{{Stardust}}'' has literal BlueBlood. Unknown if it's just because he's royalty, or if all inhabitants of the magical world have such blood, since nobody else in the movie is seen bleeding. WordOfGod states the decision for the color was made to avoid an "R" rating, with the added benefit of being a [[VisualPun visual gag]] for [[BlueBlood the character]].
* In ''Film/StarTrekVITheUndiscoveredCountry'', Klingon blood is shown to be Pepto-Bismol pink. Likely done to avoid an R-rating as it ends up being splattered all along the walls of the ship. Also in the movie, there's an inversion where an apparent Klingon's regular red blood leads to the revelation that it's actually a human in a {{Rubber Forehead|Aliens}} disguise. In the original theatrical edit of the movie, the unmasking scene was cut, [[SeriesContinuityError making the scene seem like a bizarre oversight]].
* In ''Film/TheThing1982'', blood samples are taken from all the characters and exposed to heat to test which one is the shapeshifting alien. The alien blood, it turns out, is capable of ''leaping around the room as an independent organism''. The character who proposed and carried out the test did it because he figured that the blood might well do that, as severed pieces had previously been observed operating independently.
* Most of the Graboid blood seen in the ''Film/{{Tremors}}'' films is an orangish-red color, just different enough from the maroon-red of human blood to avert an R rating.
* In ''Film/TheWatch2012'', the aliens' blood is a green goo which (according to Bob) has the feel and texture of human cum.
* In ''The Wesley's Mysterious File'', Fong Tin-Ai is a HumanAlien who looks like an average Asian woman (played by Rosamund Kwan)... but bleeds blue.
* In ''Film/TheWitches1990'', most of the witches' blood is green when they are killed as mice, although some red blood is seen on the knives and cleavers the hotel staff use to kill them.
* In ''Film/TheWorldsEnd'', the alien robot replacements for the townspeople all have blue ink-like "blood".
* ''Film/Deadpool2'': If you doubted [[Characters/XMenFilmSeriesXForce Shatterstar]] is telling the truth when he says he is an alien, we get confirmation once he unfortunately skydives into the blades of a helicopter, resulting in green blood splattering everywhere.
* ''{{Film/Xtro}}'': Sam's quadruped alien form appears to have orange and thick, almost gelatinous blood, most evident when he is accidentally hit by the couple's car, and the driver examines his wound. His second alien form has black blood.
* In ''Film/YamatoTakeru'', the [[{{Orochi}} Yamata no Orochi]] has lime-green blood.
----
