Villain(s)  Paleosaurus

Actor(s):  Gene Evans, André Morell, John Turner, Leigh Madison

Brief Description  Released on March 3, 1959, The Giant Behemoth (also known as Behemoth the Sea Monster) is a black-and-white British-American science fiction monster film directed by Eugène Lourié and featuring stop-motion animation effects by Willis O'Brien. The plot follows scientists tracking a radioactive, prehistoric Paleosaurus awakened by atomic tests, which terrorizes the English coast before heading toward London.

Plot:
Marine atomic testing disrupts the ocean's ecosystem, creating massive pulses of radiation and awakening a dormant prehistoric dinosaur. American radiation scientist Dr. Steve Karnes and British Professor James Bickford travel to a small fishing village in Cornwall. They are investigating thousands of dead, glowing fish and a dying fisherman who suffered extreme radiation burns. Paleontologist Dr. Sampson identifies the tracks as belonging to a Paleosaurus—a giant marine reptile capable of projecting biological electric shocks and devastating radioactive beams.

As the behemoth leaves a trail of destruction along the English coast and heads up the River Thames toward London, scientists realize that blasting it with conventional military weapons will scatter deadly radioactive fallout over the entire country. To destroy the beast safely from within, Karnes and a British naval officer board a two-man mini-submarine. They successfully fire a single, precisely aimed torpedo loaded with a radium warhead into the monster's mouth, neutralizing the threat. The film holds a unique place in cinematic history due to its behind-the-scenes engineering and creative constraints.