Trivia: In the film, the two transfer students are Kiriyama, the silent killer, and Kawada, the winner of a previous Battle Royale. In the original novel, only Kawada was the transfer student; Kiriyama was in the same class selected for this game of death. He was the main antagonist.
Trivia: Willem Dafoe was asked to play Donald Kimball in 3 different ways: he thought Bateman was guilty, he didn't think Bateman was guilty, and he wasn't sure if Bateman was guilty. They were all blended together to make the audience not know what Kimball thought of Patrick Bateman.
Trivia: The filmmakers originally had an ending in which Alex grabs the cable that lies on Clear's car, Alex catches fire and dies. Then Clear gets her baby and Carter survives. The test audience didn't like this, so the filmmakers shot another ending in which Alex is decapitated by a crashing police helicopter. But again, the test audience didn't like the fact that Alex dies, so they shot the finish with the billboard, which took 6 days to film and cost nearly $2,000,000.
Trivia: Right at the end, in fact the very last frame, you can see a face in the snow as the shot fades out.
Trivia: The vampire's last name was Sackville-Bagg - Bilbo Baggins' relations in The Lord of the Rings were the Sackville-Bagginses.
Trivia: A scene in which Sebastian brutally and graphically rapes his neighbor was filmed, but was mostly deleted as test-audiences felt it made Sebastian far too evil. And thus, the version of the scene in the theatrical cut only alludes to the idea without directly showing it. The original scene was reinstated in the director's cut released on DVD and Blu-Ray however.
Trivia: In the DVD's deleted scene sections, we see what happens to Pamela Fitzgerald in the Halloween party - she is confronted by two policemen and she shows them what she has in the clear plastic tupperware, which contains the fingers of Trina. The police arrest her on the spot and take her away, leaving Sam and Brigitte to save Ginger.
Trivia: At one point in the film, a character is walking through the dressing room backstage of the theater, and you can see a "phantom hand" sticking out of the wardrobe hanging on the rack. To this day, this mysterious hand has no explanation, as there was no reason for it to be in the scene. Some like to think, given the nature of the film, the hand is of supernatural origins.
Trivia: The Marquis de Sade, a promiscuous man and a convicted rapist died of syphilis (a sexually-transmitted disease) in 1814.
Trivia: Rustin Parr shows up in the movie. In the general store there is a man on the floor "fixing" the fridge. He doesn't move in his scenes and seems dead. The only time he speaks is in Chapter 15 after Kim says "Excuse me" and he says "I'm finished now" Rustin Parr was said to have walked into a general store after killing the Burkittsville 7 and saying the same thing. Also "The Secret Confession of Rustin Parr" by DA Sterns shows a picture of Rustin Parr played by the same actor in the movie.
Trivia: In an incredibly uncommon move for a Japanese anime, the movie was produced with English as its primary language. The director, Yoshiaki Kawajiri, felt it made sense for the movie to be produced in English given the nature of the material and European influences. This marks a rare instance where the Japanese audio is actually the "dub" in a Japanese film.