Mysterious Island

Mysterious Island (1961) is a adventure, science fiction directed by Cy Endfield rated 6.6/10.

During the US Civil War, Union POWs escape in a balloon and end up stranded on a South Pacific island, inhabited by giant plants and animals. They must use their ingenuity to survive the dangers, and to devise a way to return home. Sequel to '20,000 Leagues Under the Sea' .