Trivia: Hitler was played by the actor Michael Sheard, this was the third time he had played Hitler for film and TV. Ironically, Sheard's wife was half-Jewish.
Trivia: John Williams, the composer, used pieces of his score from Star Wars in this film. For example when young Indiana is on the roof of the train, you can hear bits of Star Wars.
Suggested correction: Is there an interview of John Williams saying this? Because this sounds like opinion. I personally don't hear it. There is a wonderful behind the scenes documentary on the DVD that goes in depth into the scoring of this movie. Neither John Williams, nor Steven Spielberg, nor George Lucas mention this.
Trivia: During the book burning scene, the Nazi uniforms worn by the extras are real, authentic uniforms. The costume designer, Anthony Powell, located them in Germany and had the extras wear them. (Source: CheatSheet.com).
Trivia: The tank chase sequence took ten days to film.
Trivia: Before Alison Doody was cast as Elsa, Amanda Redman was offered the role, but declined due to her real-life fear of rats.
Trivia: George Lucas originally wanted to set portions of the film in a haunted mansion where Indy would encounter various ghosts and specters, but director Steven Spielberg protested, as he had made "Poltergeist" a few years earlier and didn't want to repeat the same scares and imagery over again in an Indiana Jones film. Other early ideas had Indy searching for the fountain of youth and encountering the Chinese mythological figure the Monkey King.
Trivia: Denholm Elliott was extremely ill throughout most of the shoot. He had only recently been diagnosed with AIDS, which he would succumb to in 1992.
Trivia: Kevork Malikyan (Kazim) had previously auditioned for the role of Sallah in "Raiders of the Lost Ark" (1981).
Trivia: Vogel's name is never spoken in the film. It is only mentioned in the closing credits.
Trivia: Despite his prominent billing, John Rhys-Davies does not appear until 53 minutes into the film.