Leviathan

Perched on the hull of a wrecked Soviet freighter, a team of deep-sea miners led by head oceanographer Steven Beck comes face to face with a mutant creature that's the product of a failed genetic experiment.

Leviathan is a 1989 mystery adventure movie directed by George P. Cosmatos, starring Peter Weller, Richard Crenna, Amanda Pays. It holds an IMDb rating of 5.8/10 from 27,009 votes and runs 1h 38m.