Trivia: The dead sailor harbouring a live crab, spooking Jammer out of his wits in the sunk submarine, is director James Cameron's younger brother Mike. The scene had to be shot several times to get it right, forcing Mike to hold the live crabs in his mouth, until the cry for "action", before releasing them. At one point he had to crush one with his teeth, as it gave him quite a bit of grief. Brotherly love immortalized.
Trivia: The fictional company that owns and operates the undersea drilling rig is called Benthic Petroleum. In Terminator 2: Judgment Day (also directed by James Cameron) after the escape from the mental hospital, our heroes hide out at a gas station. The pumps at the station feature the Benthic Petroleum logo.
Trivia: When Bud and Lindsay are trapped in the mini-sub, he remarks that all he needs is a Crescent wrench to fix the leak. Moments before, when trying to secure the underwater robot, he threw a Crescent wrench out of the way to get to a rope in a tool basket outside the sub. Did anyone else spot the irony? (01:47:46)
Trivia: Director's cut: During a shot of many beach goers running from a tsunami, a man in the left foreground is pants-ed by another extra. His bare butt is out for a moment before he can yank his shorts up.
Trivia: The shoot was notoriously rigorous and hard on actors and crew members. Mary Elisabeth Mastrantonio stormed off the set after James Cameron told them to urinate in their wetsuits rather than take a bathroom break, and Ed Harris pulled over and broke down while driving home from the shoot.
Trivia: The outdoor set of the Deepcore rig wasn't dismantled for many years and inputting "The Abyss, United States" into Google Earth took you to a huge water tank which was part of a decommissioned nuclear power station in North Carolina. Sadly since its demolition Google Earth was updated accordingly.