Audio problem: When the couple is flying to their vacation destination, they are in a Turbo-Prop aircraft. The sound affect used was from a piston engined aircraft.
Audio problem: When the two submerge they are talking, but they have regulators in their mouths.
Answer: The film was inspired by an incident at St Crispin's Reef, a dive site on the Great Barrier Reef in 1998, when Tom and Eileen Lonergan was left behind by their diving boat after an error was made during the headcount. They were never seen again. More information can be found at http://outside.away.com/outside/features/200310/200310_mysteries_2.html.
Tailkinker ★