THE ABYSS. James Cameron, dir. USA: Twentieth Century Fox, 1989. Gale Anne Hurd, prod.
An underwater CLOSE ENCOUNTERS OF THE THIRD KIND (q.v.). See for a human villain called a "robot," watery alien technology, and a mise en scène that includes nifty submersibles, electronic surveillance, very-deep full-body diving suits, and other multiple containments to protect people from cold and extreme deep-water pressure. See DEEPSTAR SIX and LEVIATHAN.
RDE, Title, 19Aug19