Trivia: Kevin Smith once happened upon a demonstration against this movie by a group of Catholics. Since nobody recognized him, he simply joined in.
Trivia: There are 133 F-words in this movie.
Trivia: For his role as Vincent, Donnie Wahlberg lost so much weight that, between when he met M. Night Shyamalan and when he arrived on set for filming, Shyamalan found him completely unrecognizable.
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: The movie makers really wanted the audience to believe that Michael Rooker was the killer, rather than Leland Orser. So much so that Rooker actually played the killer in almost all the scenes where the killer wears a mask. When you see the eyes of the killer through the mask the eyes are Rooker's.
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: The strange incantation heard at the beginning of the orgy scene is a fragment of a Romanian Orthodox Church sermon played backwards. If you play it backwards you'll notice that there are two main voices (in the movie is supposed to be only one - the voice of the "great priest") and a choir.
Trivia: When Eleanor is in her bedroom, look in the mirror: both times you see children heads or portraits.
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."
