If you liked this movie, you should also see: Invasion of the Body Snatchers (1956)The Invisible Man (1933)Son of Frankenstein (1939)Quatermass 2 (1957)The Day the Earth Stood Still (1951)
A scientific expedition searching for fossils along the Amazon River discover a prehistoric Gill-Man in the legendary Black Lagoon. The explorers capture the mysterious creature, but it breaks free. The Gill-Man returns to kidnap the lovely Kay, fiancée of one of the expedition, with whom it has fallen in love.