Sea Monster Movies

A marine biologist and a government agent investigate mysterious deaths and rumors of a sea monster in a secluded ocean cove, and find themselves...

A mysterious hypnotist reverts his beautiful assistant back into the form of a prehistoric sea monster that she was in a past life.

A top secret drilling platform in the Gulf of Mexico raises a dormant alien creature from the depths. Once loose, the creature goes on a murderous...

Scientists pursuing the mysteries of the deep are threatened by a beautiful girl who seems to have returned from the dead and by a prehistoric sea...

A nuclear leak creates a mutant Slithis sea monster, which terrorizes the variety of pets, winos, and hippies who hang around Venice, California.

Lord Doom, evil master of Proyas, the Dark Planet, sends Kraa the Sea Monster to Earth as part of his plan to dominate the galaxy. To keep the...

A serpent, created by radioactivity, threatens a Spanish coastal town.

A group of Viking women build a ship and set off across the sea to locate their missing menfolk, only to fall into the clutches of the barbarian...

Fishing, friendship, and wrestling with your new favorite superhero.

A biological experiment in Florida goes awry. The result: 8-foot long land crabs which roar loudly and kill everything in sight.

Little coastal town is being terrorized by deadly Barracudas.

Julie, an American on vacation in Mexico, spots a giant, one-eyed amoeba rising from the ocean, but when she tries to tell the authorities, no one...

A strange black spot approaches the coast, bringing death and destruction to a fishing village. In a desperate flight to escape the chaos, lonely...

Two men encounter some Canadian mythological creatures in the woods.

Radioactive waste dumped off the coastline creates mutant monsters. The beasts attack slumber parties, beaches, tourists, and terrorize a waterfront...

A Marine Biologist is assigned to investigate the mysterious deaths of some marine life in an inland salt water lake that has been attributed to a...

Young men from a car repair shop in Loch Ness, northern Scotland, use a sea monster imitation to rescue castle residents from murder attacks. This...

A sea creature is terrorizing a small Gulf coast town. The creature is a mutation from the Deep Water Horizon's oil spill in the Gulf. But it's not...

The Ten Brothers return as the Lake Devil is plagued by a monster fish. To settle the old score, Marshal asks Shrimpy and his ten sons to exterminate...