In the DVD commentary, director Clark Gregg said he offered the role of the naked woman at the bathroom plane who caused Victor's addiction to his wife Jennifer Grey. She replied with: "Are you out of your mind?"
The movie was finished three days before its screening at Sundance.
Ryan Gosling and Heath Ledger were cast before Sam Rockwell eventually took the role, according to the author Chuck Palahniuk.
In the scene where Victor choked with a piece of meat, Sam Rockwell was actually eating watermelon with sauce.
Director Michelangelo Antonioni, a close friend of Anjelica Huston's, died during shooting, so in the scene where Huston's character is so sad and absent-minded that she can't speak, Huston didn't have to act much.
Chuck Palahniuk: the author of the book, is the man sitting next to Victor on the plane at the end of the movie.