History Film / LetTheRightOneIn

** [[spoiler: While Jimmy definitely deserved his fate, Conny and Martin were visibly having second thoughts about drowning Oskar and wanted to leave, but Eli brutally kills them anyway]].

* HollywoodPudgy: Oskar is considered this in universe, as the bullies default insult for him is piggy. Which makes no sense whatsever as he is played by an extremely skinny actor.

* BringMyBrownPants: Tommy shits himself while [[spoiler:locked in a basement with Håkan, who at this point is now a zombie.]]

** Lacke tries to kill Eli with a kitchen knife...that he drops before she even wakes up. Or how about turning his back on a vampire without finishing the job? In the book it is stated that he couldn't bring himself to kill a child. Here is just startled by Oskar.
** Håkan does not seem so concerned with at least trying to cover his tracks by hiding the corpses of his victims or taking any other precaution, culminating in [[spoiler:killing a boy ''in a gym and trying to bleed him in the changing room'', without even make sure that none else was around. Needless to say, he gets caught mere minutes later]].

* MasculineGirlFeminineBoy: Oskar is somewhat effeminate in comparison to the more androgynous Eli ([[spoiler: who is, of course, really an emasculated boy]]).

* DaylightHorror: The climax takes place at a well-lit swimming pool, which allows [[spoiler:the bullies' demises to be shown that much more clearly.]]

* DoesNotLikeShoes: Eli is seen going barefoot a lot.

For tropes on the original book see, ''Literature/LetTheRightOneIn''. For tropes from the English-language remake, see ''Film/LetMeIn''.

* AluminumChristmasTrees: Much was made of the scene where Oskar's dad's friend coming over in slippers to have a drink, but social drinking like this is more common in Sweden.

* DeathSeeker: Virginia is turned into this after being bitten by Eli, telling Lakie that she wants to die, and telling him to open the blinds, [[ManOnFire in order to make her burst into flames]]. When he won't do it, she gets a nurse too.

* VillainProtagonist: Calling either Eli or Oskar good guys would be debatable. Eli murders perfectly innocent people without remorse [[spoiler: and mercilessly slaughters Oskar’s bullies]], while Oskar is obsessed with serial killers, fantasizes about killing his bullies, and has no problem with Eli’s murders [[spoiler: and is okay with her murdering children when they’re the bullies in question]].

** Sort-of did with [[spoiler: Hå kan.]] He still dies, but in the film, it happens [[spoiler: after falling out of the hospital window, and he doesn't come back as a RevenantZombie like in the book.]]

* DemotedToExtra: Hå kan and the alcoholics have significantly reduced roles in the film adaptation.

* EvenEvilHasLovedOnes: Oskar to Eli, if you consider Eli evil. Certainly Eli to Hå kan, and Conny and Jimmy to each other.

** Hå kan's efforts to drain the blood of a passerby that he's just killed are thwarted when a dog comes by and begins barking, forcing him to flee as his owners come.
* FacialHorror: Hå kan after he pours hydrochloric/sulfuric acid on his face to disfigure him well enough to be non-detectable by the cops. And yes, we get to see the results, which as detailed above in AdaptationalAttractiveness are less horrific than the book's example.

* MoodWhiplash: The film switches between sweet and scary at the drop of a hat, sometimes mixing both in one scene. A strangely funny example: the news reporter who discusses Hå kan's apprehension ends the story by saying "And now, the sports."

** Hå kan doesn't look too good after pouring acid on their face.

* ViolentlyProtectiveGirlfriend: Eli takes this UpToEleven. [[spoiler:At the ending, she brutally massacres the gang of bullies trying to drown Oscar.]]

* Growling Gut: Eli's stomach growls due her being a vampire and her hunger for blood.

** [[spoiler: While Jimmy definitely deserved his fate, Conny and Martin were visibly having second thoughts about drowning Oskar and wanted to leave, but Eli mercilessly kills them anyway]].

* AlasPoorVillain: Håkan might be the only time in movie history where you could cry for the death of a ''serial-killing pedophile'', [[spoiler:holding a sobbing Eli in his arms and letting her feed on him before falling out the hospital window to his death]]. Especially considering [[spoiler:[[BodyHorror what he does to his face]] [[HeroicSacrifice to keep Eli safe]] beforehand.]]

* ProtagonistCentredMorality: We're clearly meant to root for Eli and Oskar, despite the fact that [[spoiler: the former spends the movie murdering perfectly innocent people, and the latter is perfectly okay with her doing so because she's nice to him and saved him from his bullies [[DisproportionateRetribution (by violently murdering them]]]].

* TrappedInVillainy: Eli. She kills because she has to; she'll die if she doesn't. She makes no excuses for what she does beyond its necessity for her continued existence.

* VillainProtagonist: Calling either Eli or Oskar good guys would be debatable. Eli murders perfectly innocent people without remorse [[spoiler: and mercilessly slaughters Oskar’s bullies]], while Oskar is obsessed with serial killers, fantasizes about killing his bullies, and has no problem with Eli’s murders [[spoiler: and doesn’t mind when she ''does'' kill the bullies]].

* ProtagonistCentredMorality: We're clearly meant to root for Eli and Oskar, despite the fact that [[spoiler: the former spends the movie murdering perfectly innocent people, and the latter is perfectly okay with her doing so because she's nice to him]].

* VillainProtagonist: Calling either Eli or Oskar good guys would be debatable.

** Eli kills people to survive. Oskar wants to kill the bullies for torturing him.
** Likewise, Håkan kills for Eli but hates doing it, being even more dispassionate about it than in the novel.

''Låt den rätte komma in'' (''Let The Right One In'') is a 2008 film. It was adapted by [[UsefulNotes/{{Sweden}} Swedish]] author John Ajvide Lindqvist himself for this film version.