Trivia: The Terror Incognita roller coaster is actually The Hulk roller coaster in Universal Studios, Orlando.
Trivia: In both Jaws and Deep Blue Sea there is a scene involving a license plate. In Jaws it is removed from the belly of the dead tiger shark. In Deep Blue Sea it is removed from the teeth of a tiger shark. Not only are both sharks the same kind but both plates are from Louisiana. The license plate number is the same in both films: 007 o 981 Exp 72-73.
Trivia: There are 133 F-words in this movie.
Trivia: Christopher Walken doesn't speak a single word in the entire course of the movie.
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: After Frankie tears up the apartment, possessed by the priest, she goes to the bed and levitates in a cruciform position. During this scene, there is a quick, sweeping shot of the wall and, if you watch it in slow motion, you can see a wall of boxes of Ritz crackers. This is either an obvious endorsement or some kind of inside joke.
Trivia: At one point in the movie, Kevin Bacon's wife makes a comment about him playing in 'that stupid band with your brother'. In real life, Kevin Bacon actually does play in a band with his brother, called The Bacon Brothers.
Trivia: Ridiculously huge Jesus reference at the end. When Eleanor is blasted onto the door, her arms and legs are in the same position Jesus would've had. She is lowered down by the hands, much like Jesus would've. She also dies to save everyone else, a slightly smaller point is that you see the children 'die' and going into heaven. The bible says 'only those who are like a child are to go to heaven.'
Trivia: This film is actually the second sequel to "Ringu." The first sequel, "Rasen" was shot back-to-back with "Ringu" with a different crew and director, and some of the original cast. It was then released simultaneously in theaters alongside "Ringu", in hopes that fans of "Ringu" would go to see it. After "Rasen" failed with both critics and audiences, the director of "Ringu" (Hideo Nakata) was re-hired with the original screenwriter and the original cast to film this "alternative" sequel which is written as though "Rasen" never happened. This film want on to be a success, while "Rasen" became the "lost sequel."
Trivia: In the scene with Fonda and Gleeson reaching the morgue to look at the tooth, you can hear in the background a page for Dr Miner. Steve Miner directed the film.