Tentacles

Tentacles (Italian title: Tentacoli) is a 1977 Italian-American horror film directed by Ovidio G. Assonitis and starring John Huston, Shelley Winters, Bo Hopkins and Henry Fonda. When numerous people go missing in a seaside resort town, a reporter discovers a rampaging giant octopus is terrorizing the coast. While a marine biologist attempts to stop the octopus before more tourists fall victim to the creature, it appears that a corporation may be connected to the cephalopod's violent behavior. Although the film was intended to cash in on the success of Jaws,[2] Tentacles also bears numerous resemblances to the 1955 science fiction giant monster horror film It Came from Beneath the Sea.[3]