Trivia: Reportedly, star Kevin Bacon was at a rough patch in his life during production and didn't understand the appeal of the film or the light-hearted comedic elements. (Even once breaking down in public and exclaiming in frustration "I'm in a movie about giant underground worms!") And thus, he chose to have no involvement in the sequels. It wasn't until some years later that he decided to re-visit the film and give it another chance after it became a massive cult-hit, and discovered that he actually really loved it. Bacon has since gone on record saying one of his dream projects would be to reprise his role of Val McKee in a future film.
Trivia: Director Russell Mulcahy manages to insert his name in this movie: Lamont Cranston's butler is addressed as "Russell" by Margo Lane at Cranston's residence, and there is a delivery truck with the name "Mulcahy" emblazoned on the side of the vehicle.
Trivia: The third story, " A Lovers Vow" was based on the Japanese folklore of the yuki-onna. However, writer Malcom McDowell decided that the creature should be a gargoyle instead of a spirit.
Trivia: The huge crash that starts the film takes place at McKinley Speedway. The students who die in Final Destination 3 attend McKinley High School, and there is an running gag in that film that one of the students targeted for death is also named McKinley.
Trivia: Stan Winston's face was the model for the Wolfman.
Trivia: The scene with Jill eating Wesker's sandwich and saying "It's Jill's sandwich now!" (although saying it quickly in such a way that you can't hear the "s" and it sounds more like "It's Jill sandwich now!") is a reference to an infamous moment in the original video game. In the game, Jill is almost crushed by a booby-trap, and the character Barry says she was "almost a Jill sandwich!" The poor dialogue and terrible delivery by the voice actor ended up making the moment a meme many years later.
Trivia: The family of late author Roald Dahl who wrote the novel The Witches gave director Robert Zemeckis permission to do a remake on the condition that the ending of the movie follow the ending of the book, where the boy remains a mouse.
Trivia: The profuse drooling that Wallace suffers once he has been "transformed" into the walrus could not be helped - actor Justin Long was constantly drooling due to the heavy prosthetic makeup, and the fact he had to hold his tongue back to simulate the fact that his character's tongue had been cut out.
Trivia: Makeup artist Rick Baker has a cameo appearance in this film. He's the man who whistles to his comrades who are approaching the gypsy camp then a few seconds later, gets killed by the werewolf.
Trivia: At one point early in production, the film was going to be slightly retooled in order to make it the third entry in the "Cloverfield" franchise, following "Cloverfield" and "10 Cloverfield Lane." Eventually, this idea was dropped, and the movie was left as a stand-alone film.
Trivia: In the original script, after making it to the docks, a dog would appear and start barking at Jason prompting Jason to kick it. Kane Hodder refused and even stated that as evil as Jason was, he'd never hurt an animal, so the scene was dropped.
Trivia: When the kids are walking down the stairs in the subway station, you can see one guy walking upstairs dressed as the character Mojo Jojo from "The Powerpuff Girls." Mojo Jojo was voiced by Roger L. Jackson, the same voice actor for Ghostface.
Trivia: The producers have stated that "Jigsaw" was created as they wanted to bring the "Saw" series back, and they wanted to gauge audience interest in more films. When the film became a hit - earning about $100 million worldwide against a relatively tiny $10 million budget - a ninth film was announced, with a tenth also possible.
Trivia: Actual "Cannabis Experts" were brought in to consult with actor Fran Kranz, so he could properly portray a convincing stoner in the film.
Trivia: The directorial debut of series co-star Patrick Wilson.
Trivia: During the opening of the film, Lindsay Seim portrays the younger Elise in the flashback sequence. However, Lin Shaye, who plays the older Elise, dubbed over Seim's dialog in post production. Director James Wan stated that this was done because Shaye has such a unique voice, and thus, it allowed her presence to be felt early in the film.
Trivia: Probably the most impressive visual effect in this film is when Corso consults the twin brothers Pablo and Pedro Ceniza (rare book experts). Both Ceniza twins were played by actor José López Rodero in the subtle and entirely convincing digital effect sequence. The only flaw was that the elderly twins had identical facial wrinkles, which never happens with real-life twins. Beyond that, José López Rodero additionally played the two nameless workmen that Corso encounters at the end of the film, meaning that Rodero played four digital-effect roles in this movie.
Trivia: When Lorraine Warren is dreaming about the demonic nun in her house, the demon actually reveals its name in 2 ways. The first is the way Lorraine realises at the end of the movie (written in the Bible). However, the audience is another way-the gold letters on the bookshelf behind her also spell out the name "Valak."