Leviathan

John Carpenter's The Thing is set in the isolation of Antarctica, where a research team confronts a shapeshifting alien organism. Like Leviathan, the sense of isolation, paranoia, and a formidable non-human antagonist makes The Thing a classic in the sci-fi horror genre.

Set in space rather than underwater, Event Horizon revolves around a rescue crew investigating a spaceship that disappeared into a black hole and has now returned. It shares with Leviathan a sense of dread and the terror of encountering something unknown and malevolent.

Directed by James Cameron, The Abyss takes its audience to the depths of the ocean, where a civilian diving team encounters an otherworldly aquatic species. Fans of Leviathan's deep-sea terror and close encounters with mysterious sea creatures will find The Abyss similarly thrilling.

While less claustrophobic and more action-oriented, The Meg presents the thrill of an encounter with a massive prehistoric shark, offering a high-stakes aquatic adventure that audiences who enjoyed Leviathan's creature-feature aspect may appreciate.

Sphere combines psychological thrills with deep-sea suspense, as a team of scientists investigates a spacecraft at the bottom of the Pacific Ocean. Like Leviathan, Sphere delves into the alien and the unknown lurking beneath the waves.

Virus depicts the horror that ensues after a tugboat crew discovers a deserted Russian research vessel, only to find that alien life forms have taken control. The film provides a similar blend of sci-fi, horror, and suspense as Leviathan.

DeepStar Six is another underwater thriller that explores the unknown perils of the ocean floor. As with Leviathan, the crew in this film stumbles upon a deadly threat in a claustrophobic, submerged environment, leading to a fight for survival.