20,000 Leagues Under the Sea (1954)

In 1868, a monster is terrorizing the seas, sinking ships! Three unlikely companions board a warship in search of the beast, only to find out the hard way it is an engine of destruction: a submarine boat. The trio is captured by the vessel's commander, Captain Nemo, and accompany him on a journey of adventure and discovery as the Nautilus and her occupants travel some 20,000 Leagues Under the Sea.