Trivia: In the novel, in the fight at the boom, many American sailors are injured, but Harris is the only one killed. Then, in the final confrontation at China Light, Jameson and Holman are the only ones killed; even the captain escapes, despite having been wounded at the boom. In addition, there is a third American missionary at China Light, a young man who escapes and (by implication) ends up with Shirley.
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.