Trivia: Steve McQueen received his only Oscar nomination for his performance as Jake Holman in this film.
Trivia: Audrey Hepburn's movie wardrobe was designed by the famous fashion designer, Givenchy. During the film, Peter O'Toole jokingly comments to Hepburn that the cleaning woman disguise she is to wear for the heist will, "give Givenchy a night off."
Trivia: Kate Reid was only 8 years older than Natalie Wood, who plays her daughter.