The Float. Or The Raft, I forget which name it ended up as.
This one would probably be best off if hollywood had nothing to do with it, and some college kids held the rights to create it. Might have already been done actually. But I wouldn't mind visualizing it. Actually seeing the goosebumps on their skin when it was cold a day after they got stuck out there, and people had already died. I'd be nice at least.