Factual error: With the radiation belt on fire, the icecaps begin to melt. The Seaview is bombarded by huge chucks of ice. The ice is sinking to the bottom like stones. Ice floats, it doesn't sink.
Voyage to the Bottom of the Sea (1961)
Directed by: Irwin Allen
Starring: Walter Pidgeon, Peter Lorre, Joan Fontaine, Barbara Eden
Revealing mistake: During the initial dive the hydroplane on the sail (conning tower) is pointing upwards. During a later dive the hydroplane is pointing downwards. Wouldn't one position cause the submarine to surface?
Factual error: The "Colours" were not flown whilst the Seaview was docked in New York harbour.
Question: What does Admiral Nelson have in his left shirt pocket?
Answer: Admiral Nelson is puffing on cigars in a few scenes, and his cigars are even a source of dialogue in the film. Specifically, when his quarters catch on fire, the blaze is initially blamed on a lit cigar, to which Nelson angrily replies that he ran out of cigars before the fire ever occurred. So it's a pretty good bet that Nelson was carrying a cigar (or cigars) in his shirt pocket.
Charles Austin Miller