->''Not long ago, in the unexplored reaches of an unmapped swamp, the creative genius of one man collided with another's evil dream and a monster was born. Too powerful to be destroyed, too intelligent to be captured, this thing still pursues its savage dream.''
-->-- '''Opening text'''

''Swamp Thing'' is a 1982 film directed by Creator/WesCraven, based on the Creator/DCComics [[Comicbook/SwampThing character]].

The film centers around Dr. Alec Holland (Ray Wise), who's studying a bio-restorative formula in the middle of a swamp that could possibly grow plants anywhere, and Alice Cable (Creator/AdrienneBarbeau), a Washington agent who is sent to look after the research. During an attack on the facility orchesrated by one Anton Arcane, who seeks the formula for himself, Holland is dosed with the stuff and after taking a fiery dip in the local waters, is turned into the eponymous being. Now Alec must protect Alice, the sole survivor of the attack beside himself from Arcane's men who are searching for the remnants of the notes on his work.

In 1989 it was followed by a [[{{Camp}} more campy]] sequel ''Film/TheReturnOfSwampThing''.

!!The film has:

* ActionGirl: Alice. While she is out of her element in the swamp, she still manages to hold on her own when she realizes that the research facility is under attack.
* AdaptationNameChange: Downplayed, Ferrett lost one of the t's in his name for the big screen.
* AdaptationalAttractiveness:
** Anton Arcane is played by Louis Jourdan. Nuff said.
** Ferrett was a somewhat overweight gangster in the comics, here he is played by the muscular David Hess.
* AlwaysWithYou: Swamp Thing's parting words to Alice in the end before he ventures into his new home.
* AnArmAndALeg: When suddenly stopped by Swamp Thing while he is chasing Alice, Ferret manages to cut off Swampy's arm with a machete. Swamp Thing retaliates by grabbing his head and killing him.
* BetweenMyLegs: Shown when Swamp Thing creeps up on Bruno, while he and other Arcane's mooks search for him on boats.
%%* TheBigEasy
* BigFancyHouse: Arcane's mansion is filled with works of art, and it has bookshelves covering every wall.
* CarFu: Ferret and the other mooks attempt to run Swamp Thing down with their Jeep, but are [[PedestrianCrushesCar stopped dead on their tracks]] by his newfound SuperStrength. He then proceeds to rips the car's roof off and throw the men about.
* ChekhovsGun: Alice picks up a small propane tank in the command center from the middle of the floor and puts it aside when she goes looking for her boss in there. When Ferret jumps on her, she grabs the thing and manages subdue him with it for a while.
* ComicbookAdaptation: The first annual issue of the second volume of ''Swamp Thing'' adapted the movie into a comic form.
* CompositeCharacter:
** Alice Cable is an amalgam of Abby Arcane and Matt Cable, being a government agent with the surname Cable, and Swamp Thing's love interest with a first name starting with "A".
** Anton Arcane, a sorcerer/alchemist/scientist in the comics, takes the role of the Conclave gangsters who destroyed Alec's lab, [[AdaptationOriginConnection leading to his transformation]].
* DramaticDrop: When Arcane's assistant Karen sees the early stages of his transformation, she drops the tray she's holding in shock.
* EveryCarIsAPinto: Swamp Thing hijacks a boat from mooks and sets it toward an another boat. Both explode in the ensuing crash.
* EvilMakesYouMonstrous: After hearing from Swamp Thing that the bio-restorative formula enchances the its ingestors essence, Arcane becomes convinced that his intelligence will make him a demi-god if he were to drink it, and he does just that. He then turns into [[OneWingedAngel a hairy lizard monster]], who starts angrily chasing after Swamp Thing.
* {{Fanservice}}: Well, if you have Adrienne Barbeau in your movie, why wouldn't you have a topless scene, dammit?
* FanserviceExtra: Nude dancers provide entertainment for Arcane's visitors and mooks in the party in his mansion that celebrates the capture of Swamp Thing.
* GroinAttack: After Ferret brings Alice onboard Arcane's boat, he tries to pull the moves on her. Her response to them is to knee him on the groin and swiftly escape.
* HalfheartedHenchman: Bruno, who shows remorse for his participation in Arcane's mooks' misdeeds by placing the late Linda Holland's necklace among the ruins of the facility as a makeshift grave marker.
* HealingHands: Swamp Thing has this power, which he first demonstrates by healing Jude from the wounds caused by Arcane's mooks, and later in the climax by bringing Alice back to life after she is stabbed by Arcane.
* HeelFaceTurn: Bruno, the only one of Arcane's thugs to have shown any redeeming qualities previously, switches sides in the last act out of self-preservation and an attack of conscience, helping Swamp Thing and Alice escape from a mutated Arcane.
* HoistByHisOwnPetard: Swamp Thing defeats Arcane with his own sword that he grabbed after transformation.
%%* IdiosyncraticWipes
* KarmicTransformation: Bruno gets one. Even though he's implied to feel guilty about his part in murdering Alec, Linda and several others, Bruno never repents from being a mercenary thug or even thinks of switching sides. He's ultimately betrayed by Arcane and mutated by the formula without his consent.
* LatexPerfection: Arcane's disguise as Ritter, coupled with his ability to chance voices.
* MacheteMayhem: After Alice escapes from Arcane's boat, Ferret swims after her and starts chasing her with a machete.
* {{Malaproper}}: Bruno tells Arcane that the other men suspect Swamp Thing being "one of those Abdominal Snowmens".
* ManOnFire: Alec is set on fire after he is accidentally doused with his mixture, and he clumsily runs into the swamp which turns him into the eponymous big green man.
* MistreatmentInducedBetrayal: While Bruno is shown not to be as evil as his fellow mercenaries and implied to feel some remorse over Linda's death, it's not until after Arcane betrays him and poisons him that he switches sides and helps Swamp Thing.
* MookLieutenant: Ferret is the leader of the HiredGuns working for Arcane.
* MurderByMistake: While searching for Swamp Thing, the mook Tyrone calls out to Ferret and others and is accidentally shot by Danny.
* NotInKansasAnymore: Said by Alice when she arrives to the facility through the swamp.
-->'''Alice:''' I don't know where we are Toto, but it sure isn't Kansas.
* OneWingedAngel: [[spoiler:Anton Arcane mutates himself with Dr. Holland's mixture into a werewolf-like monstrosity for the FinalBattle.]]
* OutdoorBathPeeping: Alec peeps on Alice as she bathes then sadly turns away to angrily to throw away the the notes on his work.
* PainfulTransformation: Bruno's transformation into the pig creature.
* {{Planimal}}: Alec's work is based on a combined cell of an animal an a plant.
* ThePowerOfTheSun: After captured by Arcane and left in his dungeon, Swamp Thing manages to regrow his arm and gain enough strenght to [[BreakingTheBonds break his bonds]] thanks to a beam of sunlight.
* ProtagonistTitle
* RedemptionEqualsLife: Bruno (mutated into a piglike midget) helps Swamp Thing escape Arcane's dungeon and briefly distracts the mutated Arcane for him, and manages to survive the story, albeit still mutated into a pig-midget.
* SaveTheDayTurnAway: After defeating Arcane, Holland decides to stay in the swamp, but not before bidding farewell to Alice.
* ShirtlessScene: Provided by Arcane. Courtesy of a sixty-two-year-old Louis Jourdan. Naturally, not too many ladies complained.
* SignatureStyle: Harry Manfredini did the score for the film, so don't be weirded out if the scene where Ferret chases Alice with a machete in hand [[Franchise/FridayThe13th reminds you of something else]].
* StockScream: One of the mooks lets out a Wilhelm scream when Swamp Thing throws him off a boat.
* SwordPlant: After defeating Arcane, Swamp Thing plants his sword next to him.
* TagalongKid: Jude tags along with Alice after the gas station that he was looking after is swarmed with Arcane's men.
* TamperingWithFoodAndDrink: After finding out how the create Dr. Holland's mixture, Arcane tries it out by tricking Bruno to drink it.
* TouchOfTheMonster: Used on the posters and video releases, which show Swamp Thing carrying Alice on his arms in various states of consciousness.
%%* VictoriasSecretCompartment
* VoiceChangeling: Arcane is capable of imitating other people's voices.
* WickedCultured: Arcane, who even recites Nietzche to Alec before he is caught on fire.