20, 000 Leagues Under the Sea (1954) 480p, for 1080p see comment below Kirk Douglas, James Mason, Paul Lukas

The oceans during the late 186092s are no longer safe; many ships have been lost. Sailors have returned to port with stories of a vicious narwhal (a giant whale with a long horn) which sinks their ships. A naturalist, Professor (Pierre) Aronnax, his assistant, Conseil, and a professional whaler, Ned Land, join an US expedition which attempts to unravel the mystery.