Continuity mistake: In the opening scene, as the first Nautilus attack takes place, there is a moment, where the camera shows the Nautilus from the top and there is green light coming out of the back, as it was made out of glass. But the top of the Nautilus is made from iron.
20,000 Leagues Under the Sea (1954)
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Directed by: Richard Fleischer
Starring: Kirk Douglas, James Mason, Peter Lorre, Paul Lukas
Revealing mistake: In the scene near the end when water is filling up the submarine, Kirk Douglas begins fighting with a member of the crew to escape. As Douglas hits him his false sideburn falls off and flies across the screen.
Captain Nemo: The natives over there are cannibals. They eat liars with the same enthusiasm as they eat honest men.
More trivia for 20,000 Leagues Under the Sea
Question: What did Captain Nemo mean when he said, 'I found out what I wanted to know'?
Answer: To see what kind of men they are, especially Ned Glass. They held on to the sub against the harshness of the ocean. They did not scream, cry, or beg for mercy.