It Came from Beneath the Sea

It Came from Beneath the Sea is a 1955 American blackandwhite science fiction giant monster film from Columbia Pictures, produced by Sam Katzman and Charles Schneer, directed by Robert Gordon, and starring Kenneth Tobey, Faith Domergue, and Donald Curtis. The script by George Worthing Yates was designed to showcase the stop motion animation effects of Ray Harryhausen.

The scientists suggest the disappearances of a Japanese fishing fleet and a Siberian seal boat may be the work of the foraging sea beast. Both Pete and the Navy representatives express doubt and demand further proof. Later, as Pete assists John and Lesley, a report comes in of an attack on a French shipping boat several men escaped in a raft. The French survivors are questioned by psychiatrists, and when the first sailors description of a creature with giant tentacles is met with skepticism, the other sailors refuse to testify. Lesley is able to convince the first sailor to repeat his story for government officials, who then have the evidence they need. The U. S. government halts all sea traffic in the North Pacific without revealing the reason. John flies out to sea to trace a missing ship, while Pete and Lesley follow up on a report of three missing people on the coast of Oregon.The local sheriff, Bill Nash Harry Lauter, takes Pete and Leslie to the site of the attack, where they find a giant suction cup imprint in the beach sand they then request that John join them. Bill is later attacked along the beach by the giant octopus, right in front of the two scientists. He escapes, and together they hastily arrange for all Pacific coast waters to be mined before departing for San Francisco and the Navys headquarters. An electrified safety net is strung underwater across the entrance to San Francisco Bay to protect the Golden Gate Bridge, which has also been electrified. John takes a helicopter along the shoreline and baits the sea with dead sharks in an effort to lure the sea beast inland. Lesley demonstrates to reporters a special jetpropelled atomic torpedo, which they hope to fire at the creature, while driving it back to the open sea before detonating the weapon. Later that day, the giant octopus demolishes the underwater net, irritated by the electrical voltage, and heads toward San Francisco. ........

Source: Wikipedia