Atomic testing in the Pacific awakens an underwater behemoth (really a six-tentacled octopus courtesy of stop-motion animator Ray Harryhausen) that threatens San Francisco. "It Came from Beneath the Sea" (1955) stars Kenneth Tobey, Donald Curtis, and Faith Domergue. And a manned spaceship makes the "20 Million Miles to Earth" (1957) return trip from Venus with an alien "guest," a reptilian creature dubbed the Ymir that grows to gigantic size and runs amok in the streets of Rome. William Hopper and Joan Taylor star, with masterful effects work by Harryhausen. 161 min. total. Soundtrack: English.