Stories of the infamous shoot for James Cameron’s The Abyss are almost as harrowing as the movie itself. The director’s penchant for perfectionism led him to engineer an unprecedented underwater shooting schedule, pushing cast and crew to the limits, and endangering people’s safety more than once. One particularly grueling evening triggered a furious emotional meltdown from actress Mary Elizabeth Mastrantonio, still spoken of in hushed whispers among the scions of Tinseltown. Despite that, and despite the psychological scars some members of the shoot still carry to this day, it resulted in an impressively groundbreaking movie that has aged remarkably well. For better or worse, The Abyss opened today in 1989.