Fans of James Cameron's The Abyss should check out these mysterious sci-fi movies for more of the same high-concept intrigue and spectacle.

Piccard's first bathyscaph, the FNRS-2, was referred to as the "submarine balloon" because its heavy-metal ballast, attached by electromagnets, allowed it to sink to a desired depth when engaged ...

An epic adventure film thrusting a team of civilian divers and Navy SEALs to the bottom of the Atlantic Ocean, in a search-and-rescue mission for a sunken nuclear submarine.

At some point, somewhere in the relentless events of the Second World War: A submarine returns from a long, successful patrol. Shortly before their native coast, however, they are bombarded by ...