The movie's opening was a deliberate attempt by filmmakers Drew Goddard and Joss Whedon to confuse the audience and make them think they walked in to see the wrong movie.
When Jules kisses the wolf head on the wall, the wolf's tongue is covered in powdered sugar to give it a dusty look and to make the scene tolerable for Anna Hutchison.
During the lake scene, the only student not to jump into the lake is Marty, who remains fully clothed on the dock. This was partially due to Fran Kranz noticeably being in as good, if not better, shape than the other male students. In the commentary for the film, the writers joke that he was "ripped like muscular Jesus" and assert that if Marty were shown being that fit it would ruin the character. This is partly also why Marty wears baggier clothes than the other students.
The thermal coffee mug/bong was a fully functional mug and bong as portrayed in the film, the prototype of which cost $5000 to make.
Much of Drew Goddard's inspiration for this movie came from his own upbringing in Los Alamos, New Mexico, a place filled with scientists and co-workers all going about their business and living seemingly routine and ordinary lives even though they were building nuclear weapons that could potentially destroy the entire world. He talks about this in DVD special features interviews and commentary.
During production, MGM saw the dailies of a scene where Chris Hemsworth instructs his friends. On the basis of his performance, they signed him on for Red Dawn (2012). Two days later, Hemsworth was also chosen to play the lead in Thor (2011). Both Red Dawn and The Cabin in the Woods would eventually be delayed for several years when MGM went bankrupt, and were finally released a year after Thor.
Drew Goddard and Joss Whedon wrote the screenplay for themselves after both came off failed film projects. They locked themselves up in a hotel room in order to challenge themselves, and wrote almost the entire script in one weekend.
The being with the golden sphere is named in the credits as "Fornicus, Lord of Bondage and Pain".
The Latin that Dana reads from the diary is: "Dolor supervivo caro. Dolor sublimus caro. Dolor ignio animus." It means: Pain outlives the flesh. Pain raises the flesh. Pain ignites the spirit.
Kevin, one of the monsters in the white board, is a tribute to the Elijah Wood character of the same name from the movie Sin City (2005) and the original Frank Miller graphic novel.
Fran Kranz received extensive prop and behavior training in order to capture the stoner persona of Marty. He received a two-hour joint rolling session and a separate bong lighting session from expert consultants. In addition to the famous travel-mug bong, a number of more subtle marijuana paraphernalia appear in the film. These include Marty's stash, his secret stash, a smaller pipe, a 'tulip-joint', and a joint kept in the pocket of his pants. The prop crew even designed the film's own brand of rolling papers, 'Smiling Buddha' papers.
After the film was shelved due to the studio's bankruptcy, even director Drew Goddard and producer Joss Whedon had little faith in it, until Lionsgate saw the finished film, loved it and picked it up for release.
The film's release date was postponed because the studio wanted to convert it to 3D, despite objections from Joss Whedon and Drew Goddard. These plans were eventually scrapped, and the film was released only in 2D.
The scene where Curt asks Jules about the textbooks, "What are you doing with these? Who gave you these? Who taught you about these?" and she answers, "I learned it from you! Okay? I learned them from watching you!" is a take-off on a 1987 Anti-Drug PSA where the father confronts his son about drug paraphernalia and gets a similar answer.
Screenwriters Drew Goddard and Joss Whedon had considered several directors, including Victor Salva, as both men liked his Jeepers Creepers (2001) and its sequel. Goddard was actually hoping to direct himself, until Whedon also stated the desire to direct his own screenplay. Finally, Whedon allowed Goddard to do the honors while he produced the movie.
Jamie Lee Curtis was considered for the role of "the director" it ultimately went to Weaver.
Won five 2012 Fright Meter Awards, including Best Horror Movie, Best Director, and Best Screenplay.
One of two films featuring Chris Hemsworth that had been filmed in 2009, but not released until 2012. The other being Red Dawn (2012).
Drew Goddard's directorial debut. His first day as a director was the scene at the gas station, which proved to be an immediate challenge since the set was unexpectedly covered in snow.
The car that Marty (Fran Kranz) is driving is the same car that director Drew Goddard drove in high school. Goddard also had the strange habit of locking the doors without rolling up the window.
Maya Massar claimed that it took 8 hours to apply her makeup for the character of Mother Buckner the first time. She noted that after the first application it still took between 4 and 6 hours to apply her makeup for each day of filming.
Included among the "1001 Movies You Must See Before You Die", edited by Steven Schneider.
The film was originally scheduled for release in Australia on the 12th of July, 2012, but was pulled by its distributor, Roadshow Films, in late April. Already incensed by the delayed release, the news of canceling its cinema run altogether prompted backlash from fans who filled Roadshow's Twitter and Facebook feeds with angry hate mail calling for reconsideration.
The entry date in the book they read from is April 4th. That is the same setting as the first chapter of the George Orwell novel "1984," also about extensive ill-intended camera surveillance.
The blood spewing out of the merman's blowhole was a very late idea that made it into the film. The director jokes that the blood shot out for nine minutes, but only the last ten seconds of this shot were actually used.
When showing all the other countries that failed, it shows a monster dead in Buenos Aires that looks awfully like Sully from Monsters Inc.
The Evil Dead (1981), 1984 (1984), Resident Evil (2002), Cabin Fever (2002) and Saw (2004) are considered influences behind the film.
The song playing at the office celebration party is "Roll with the Changes" by R E O Speedwagon. As the big screen in the background shows the last woman being slowly killed, the lyrics sing: "if you're tired of the same old story...".
After finishing work on the film, Anna Hutchison would join the hit graphic TV series Spartacus: Blood and Sand (2010) in it's 3rd and final season.
After production was completed on the film, Chris Hemsworth returned as Thor the God of Thunder in The Avengers (2012) which was directed by Joss Whedon and it was Hemsworth's 2nd collaboration with Whedon.
Both Anna Hutchison and Chris Hemsworth were in soap operas. Anna Hutchison played Delphi Greenlaw in Shortland Street (1992) and Chris Hemsworth played Kim Hyde in Home And Away (1985).
When Mordecai is on speaker telling Sitterson and Hadley about how the group did not heed his warning, Sitterson and Hadley are also not heeding his warning, laughing at Mordecai's unwavering seriousness.
The line "Let's get this party started" is spoken twice: once by Sitterson as he and Hadley prepare to unleash hell on the group, and once by Dana as she hits the Purge button on the console to unleash the demons.
The film's main female protagonist is called Dana. Sigourney Weaver was known for playing Dana Barrett in the Ghostbusters films.