* ActorAllusion:
** [[{{Series/Dollhouse}} Topher]] knows a thing or two about "chips in kids heads".
** [[spoiler: Sigourney Weaver]] explains the FinalGirl trope.
** Amy Acker has previously dealt with [[spoiler: "giant evil Gods"]] in ''{{Series/Angel}}''.
* ActingInTheDark: The actors were all auditioned with scenes that weren't actually from the movie and they didn't know what they were shooting until they signed on.
* AwesomeDearBoy: [[spoiler: Sigourney Weaver's]] main reason for her cameo? She wanted to be in a scene with a werewolf.
* CastingGag: This is the third time Creator/AmyAcker has [[Series/{{Angel}} played]] a [[Series/{{Dollhouse}} scientist]] in a Joss Whedon production.
* CreatorInJoke: A Reaver from ''{{Series/Firefly}}'' is [[spoiler: among the monsters downstairs]].
* DevelopmentHell: The film was stuck on release since 2010 after MGM's bankruptcy and was almost released in 3D in 2011. Finally, Creator/LionsGate [[SavedFromDevelopmentHell acquired the distribution rights to the film]] and released it in 2012.
* DyeingForYourArt: Actually averted by Anna Hutchinson, who is a natural blonde, playing a character who has just dyed her hair blonde.
* DirectorDisplacement: Poor, poor Drew Goddard. No recognition for writing ''Film/{{Cloverfield}}'' due to it being produced by J.J. Abrams, then no recognition for co-writing and directing this due to Whedon being a co-writer...it was his first directing gig too!
* DirectToVideo: It was originally slated for this in Australia and New Zealand. Fans complained. It subsequently got a limited theatrical run in June of 2012.
* EnforcedMethodActing: The scenes in the RV on the way to the cabin were some of the last shot with all the cast together - allowing them to build up natural chemistry and camaraderie with each other.
* FakeAmerican: Curt is played by Australian actor Chris Hemsworth, while Jules is New Zealand actress Anna Hutchinson.
* FanNickname: The Sugarplum Fairy monster is often referred to by fans as "Ballerina Dentata."
* MeaningfulReleaseDate: The film was released on Friday the [[ThirteenIsUnlucky 13th]].
* NamesTheSame:
** Just the fact that [[spoiler:Creator/SigourneyWeaver]] [[Film/Ghostbusters1984 famously played another Dana.]]
** There's one plausible guess for what "[[Film/WeNeedToTalkAboutKevin Kevin]]" is.
* OneOfUs: Kristen Connolly is a huge fan of horror films - citing ''{{Film/Scream 1996}}'' as her favourite. When she signed on, she describes being relieved when Joss Whedon assured her they wouldn't be making something like ''{{Film/Hostel}}'' - as she dislikes TorturePorn films.
* RealitySubtext: Jesse Williams used to be a teacher, making him appropriate for the character who is pigeonholed into the role of TheSmartGuy.
* SerendipityWritesThePlot: Minor example. Note how when the kids go swimming, Marty is wearing a baggy t-shirt and everyone else is in swimsuits. This is because Fran Kranz was actually in [[ClarkKentOutfit great shape underneath]] and they felt his physique wasn't believable for the character.
* StarMakingRole: Creator/ChrisHemsworth. According to Creator/JossWhedon and Drew Goddard the dailies from the scene where [[spoiler:Curt reveals Jules has been killed]] were so well-received by the studios that it actually locked him in for lead in the remake of ''Film/RedDawn2012'' and got him a callback for ''Film/{{Thor}}'' which he would come to star in.
* StevenUlyssesPerhero: The greensperson (crew member in charge of acquiring plants and trees for a film set) on the film is named "Glenn Foerster". Drew Goddard and Joss Whedon mention on the commentary how thrilled they were at his name.
* TypeCasting:
** Creator/JodelleFerland as [[CreepyChild Patience Buckner]].
** In both this film and ''{{Film/Paul}}'', [[spoiler: Sigourney Weaver plays the head of an evil organization hiding an otherworldly secret from humanity; she appears only by voice until the very end of the movie, when she presents herself and tries to kill the protagonists, only to be killed herself. (then again, both serve as a CastingGag, inverting [[Film/{{Alien}} her most famous role]] of someone who gets screwed by a MegaCorp's questionable decisions)]]
* WhatCouldHaveBeen:
** The various ''VideoGame/Left4Dead'' characters are present because there was supposed to be special [=L4D=] downloadable content based on the film. The deal fell through, but the characters didn't seem out of place, so it was easier to keep them in.
** The studio wanted the office celebration scene cut down. Drew Goddard was so upset by this and couldn't bring himself to do it, that Joss Whedon phoned the studio to inform them they would not.
** A tie-in book reveals concept art for other monsters that weren't used. They include an {{Expy}} of Film/CreatureFromTheBlackLagoon, a monster made of seaweed, a ThreateningShark, a zombie Native American hunter, a pirate and several alien monsters. The novelization mentions creatures representing real-world fears - such as a vagina-toothed woman, an alligator-headed dog, a Minotaur, a giant [[HairRaisingHare rabbit]], a three-headed baby, a group of [[MagmaMan lava people]] and the freakiest of all - a woman with snakes for pubic hair.
* WordOfGod: 'Kevin' listed on the board is described by Drew Goddard as a seemingly nice guy "who looks like he might work at Best Buy" - who then dismembers people.
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