Last Breath is excellent indeed.Having a bit of a Sci-Fi "B" movie session, started with "Forbidden Planet", then the original "The Day the Earth stood still" (Klaatu barada nikto!), finished off with Rachel Welch in "Fantastic Voyage".
Later I'm planning to watch "Last Breath", a fantastic docu-drama about the saturation divers in the North sea. The first part is interviews with the crew and video footage shot by one of the divers, who is later involved in an incident on the sea floor when the position-keeping system on the dive vessel fails and it starts to drift. At one point the entire ship is effectively "anchored" by this bloke and his dive suit umbilical.
I've used this film at work as a classic example of "what can go wrong, will", and how you should understand everything that could go wrong.
I'll let you find the ending out for yourself.