Trivia: The term "Prince with a Thousand Enemies" used in the prelude is a direct translation of the rabbit folk hero El-Ahrairah's name.
Trivia: To acquire the withdrawn, hollowed-out look of his character, Christopher Walken ate nothing but bananas and rice.
Trivia: While the two men are preparing for the raiders towards the film's end (as they lower the gates, etc.), the music playing is the same as that which accompanied the opening credits of "Monty Python and the Holy Grail."
Trivia: Two of Bruce Lee's earlier films, The Way of the Dragon and Fist of Fury, are seen as films Billy Lo (Bruce Lee) is starring in, Fist of Fury being the one where Billy is shot.
Trivia: Originally, Damien was going to be 15 instead of 12. He would also have had a girlfriend, so that when he discovered that he was the Antichrist, he would be torn between love and destiny. This idea was ultimately scrapped.
Trivia: The cast were told they could not have their own dressing rooms so Angela Lansbury, Maggie Smith and Bette Davis all shared a room.
Trivia: Maggie Smith is the only actress to win an Oscar for playing a character who loses an Oscar.
Trivia: The Chetniks were not one coherent group, as portrayed in the movie. There were in fact two opposing fractions: the first fought alongside the partisans, the others - founded by Kosta Pecanac (the featured group) cooperated with the Germans. Despite their public enmity, though, they still maintained good relations with each other, one of the facts which led to great confusion about the Chetniks among the Allies - probably the reason why they are portrayed here solely as 'bad guys'.
Trivia: Tony Lo Bianco plays Richard Gere's father in the movie, even though in real life he's only 13 years older than Gere.
Trivia: In this film Gregory Peck is attacked by large vicious dogs, dogs that can be trained to attack and kill; and in the film "The Omen", again Gregory Peck is attacked by very (or the same) vicious dogs.