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: When composer Éric Serra showed Inva Mula, the Albanian soprano who was going to sing the Diva Dance, the sheet music for that part, apparently she laughed and said that it was impossible for the human voice to switch from high to low notes that quickly. She got her way: The part that ended up in the film is not a single piece of audio, rather it's several pieces stitched meticulously together.
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: 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: In an interview, Jim Carrey admitted to being obsessed with the number twenty-three.
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: The boardwalk scenes were filmed on location at the Santa Cruz Beach Boardwalk in Santa Cruz, California.
Trivia: In the scene where Alice finds Bill's body hanging on the back of the door to the generator room, the producers purposely did not tell Adrianne King what they were going to do to the body nor did they let her see the body beforehand. When she saw the body during filming it was for the first time. The scream she produced was genuine as it scared her badly. Needless to say, that entire scene was shot in one take.
Trivia: Laurence Mason's character Lord Nikon was given the name because of his photographic memory.