Villain(s)  Genetically altered giant creatures

Actor(s):  Michael Craig, Joan Greenwood, Herbert Lom, Michael Callan

Brief Description  Mysterious Island (1961) is a classic science-fiction adventure film directed by Cy Endfield, loosely based on the 1874 novel by Jules Verne. Renowned for its iconic stop-motion special effects by Ray Harryhausen and a thrilling musical score by Bernard Herrmann, the film functions as a loose cinematic sequel to Verne's Twenty Thousand Leagues Under the Sea.

Plot:
The story begins in 1865 during the American Civil War. A group of Union prisoners escape from a Confederate military prison in Richmond, Virginia, by hijacking a hot-air observation balloon. A violent, days-long storm sweeps their balloon thousands of miles across the continent and deep into the Pacific Ocean, where they ultimately crash-land near an uncharted, remote volcanic island. While exploring the island, the survivors discover that they are not alone. The territory is populated by gigantic, mutated animals. They are soon joined by two shipwrecked British aristocratic women.

Together, the castaways form a fragile colony, battling the wildlife, marauding pirates, and an increasingly unstable, erupting volcano while looking for a way home. They soon discover a secret benefactor is assisting them: Captain Nemo, who survived the destruction of the Nautilus and has been using the island as a hidden base. Nemo reveals he engineered the giant beasts to end global world hunger. He helps the castaways hatch a desperate plan to raise a sunken pirate ship using their old balloon to escape before the volcano destroys the island.