Trivia: There are several places where Edward Norton sees Brad Pitt for a split second before he actually meets him - beside the photocopy machine, talking to the doctor, at the testicular cancer group, when Marla is in the alley, and when watching TV when the waiters say "Welcome". Also Tyler is the one who steals the Camaro after Tyler and the narrator meet for the first time.
Trivia: When Harry is being run all over town by Scorpio, he passes a wall which bears the graffiti "Kyle", the name of Clint Eastwood's son.
Trivia: In the evidence depository in the beginning you can see Jason Voorhees' hockey mask (Friday the 13th), Leatherface's chainsaw (Texas Chainsaw Massacre), Michael Myers' mask (Halloween), and Freddy Krueger's glove (Nightmare on Elm Street). (00:00:45)
Trivia: Dr. Curt Connors, Peter's one-armed teacher in the film, is the man who will later become The Lizard, one of Spider-Man's longest running enemies.
Trivia: The director was not expecting the unintentional movie audience laughter when Alice's vision to Aro shows Edward and Bella running in slow motion through the woods as vampires. Jokingly, he says it is because Edward runs like a girl. (Audio commentary.)
Trivia: All of the guards at the clinic on the mountain have the Olympic rings on their orange tracksuit tops.
Trivia: Monica Bellucci's dress is some what see through. You can see that she isn't wearing underwear. (01:05:10)
Trivia: In Lori's dream, kids teasing a young Jason place a burlap sack on his head, similar to the burlap sack Jason wore in Friday the 13th Part 2. Jason started wearing the goalie mask in Friday the 13th part 3. (00:08:00)
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: Some of the members of Captain America's wartime elite squad are taken from Marvel Comics WWII based "Sgt Nick Fury and the Howling Commandos" - such as Dum Dum Duggan and Gabe Jones.
Trivia: Part of the film was actually shot at the infamous Cabrini-Green housing projects. The crew had to pay off members of local street-gangs in order to maintain a peaceful shoot. (Although allegedly, one bullet was fired at a production vehicle during photography).
Trivia: In the scene were Mercy claims to have stolen the coat because the cops are looking for somebody in a pink top, she actually had to wear the coat to cover a cast on her wrist which she broke while being pulled by Fox in the 96th street station chase just before Fox's sad departure.
Trivia: The topless girl at the mobsters' pool party is future "Three's Company" TV star Suzanne Somers.
Trivia: Barney asks Drummer where Church is and Drummer replies "forget about him, he's out of the picture." A reference to Bruce Willis wanting too much money for his part in the film, hence he was cut out of the picture.
Trivia: During filming, Val Kilmer became so difficult to work with, that after his final scene was filmed, director John Frankenheimer ordered his crew to "get that bastard off my set."