Humanoids from the Deep (released as Monster in Europe and Japan) is a 1980 American science fiction monster movie starring Doug McClure, Ann Turkel and Vic Morrow. Roger Corman served as the film’s uncredited executive producer, and his company, New World Pictures, distributed it. Barbara Peeters directed humanoids from the Deep and an uncredited Jimmy T. Murakami, with a musical score composed by James Horner in his debut. (Wikipedia)
https://cinematicdiversions.com/humanoids-from-the-deep-1980-review/