Soldiers escaping the American Civil War take flight in a giant observation balloon and land far away on a strange uncharted island, where they encounter giant creatures, cut-throat pirates, two shipwrecked Englishwomen - and the mysterious Captain Nemo. Sci-fi adventure based on Jules Verne's novel, starring Michael Craig, Herbert Lom, Joan Greenwood and Michael Callan, with special effects by Ray Harryhausen