Trivia: According to the Guinness Book of Records, the Lord of the Rings holds the record for the greatest number of false feet used in one movie: 60,000.
Trivia: Nan Martin (the unattractive Tanya/Nurse "sourpuss") was the real-life mother of Zen Gesner (who played Ralph).
Trivia: When Donnie is about to enter the car with Gretchen near the end of the film, he clutches at his stomach as if in pain, and we see Frank touch his eye after Donnie dies. Both these moments foreshadow pain: a deleted scene of Donnie's death shows a pole impaling his stomach right where he clutched it. And Donnie shoots Frank in the eye.
Trivia: At the beginning, right after Christian sings the 'hills are alive' line, the unconscious Argentinian says something about him having lots of talent, and 'happens' to put his hand on his crotch. Then later in the movie, when Satine is unbuttoning his pants when they are in the elephant for the first time, she calls him a 'big boy' and Toulouse says he has HUGE talent.
Trivia: Several of the named knights were, in fact, real, though many of them are from different time periods. Ulrich von Lichtenstein was a knight and author who was said to have invented the concept of chivalry and courtly love. Piers Courtenay was a descendant of Edward I, born in the 15th Century. Sir Thomas Colville, Edward III's disguise, was a knight from the 13th Century.LorgSkyegon
Trivia: When the "pizza boy" is stopped by the drag racing, the driver is Rob Cohen, the film's director. (00:15:48)
Trivia: Linda Harrison, who portrayed Nova in the original Planet of the Apes and its sequel Beneath the Planet of the Apes, has a cameo appearance in this movie as one of the people inside the rolling cage as it's being taken into the city. She is seen standing next to Mark Wahlberg, shaking her head when he asks her a question.
Trivia: For anyone who hasn't read the book: The inscription on top of the Mirror of Erised says "erised stra ehru oyt ube cafru oyt on wohsi". If you read the inscription backwards it says "I show not your face but your heart's desire".
Trivia: The voice behind Roz, the number 1 of the Child Detection Agency and the undercover secretary, is actually a man.