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: Minor Spoilers: Director David Leitch previously made "Deadpool 2," which starred Ryan Reynolds, and in which Brad Pitt had a brief, blink-and-you'll-miss-it 2-second cameo. Leitch also directed this film, which stars Brad Pitt, and in which Ryan Reynolds has a brief, blink-and-you'll-miss-it 2-second cameo. (Reynolds appears very briefly in a flashback as the assassin Pitt is subbing for).
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: 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."
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: In the scene where Regan's mother is supernaturally blasted away from the bedside, she is being yanked by the crew by a length of rope. After dozens of takes director William Friedkin was still unhappy with the look of the shot and ordered the crew to haul her more fiercely. The scream in the shot that made the cut was of genuine pain and required no dubbing for effect.
Trivia: Penelope Cruz played the same character in 'Vanilla Sky' as she did in the Spanish version of the same film, 'Abre Los Ojos'.
Trivia: Anthony Hopkins won a Best Actor Oscar for his role as Hannibal Lecter, even though he's only on screen for 16 minutes.
Trivia: Jennifer Garner wore colored contacts for the role of Elektra. Her natural eye color is brown.
Trivia: After the truck with the gold in it, drops from the street and people scatter and scream, there is a man dressed as Spider-Man on the street. (01:25:35)
Trivia: There are lots of signs showing how Evan will die: the doll in the hallway is missing its right eye, the fridge magnets spell 'eye' after one falls off and lastly he has just bought an 'i' Mac computer.
Trivia: The two old men near the end, talking about it being "old school" are voiced by Frank Thomas and Ollie Johnston, two Walt Disney animators who worked on such classics as Bambi and Cinderella.
Trivia: Laurence Mason's character Lord Nikon was given the name because of his photographic memory.