it's not the blue hole in belize. it's the blue hole in egypt.
that video is interesting. if he was an instructor, then he shouldn't have been overweighted unless he was teaching a student. sometimes students make a break for the surface and you have to slow them down. clearly though he wasn't teaching, as he was only with his buddy/student for a few minutes of the dive. we can only speculate, like the people in the movie, what he was doing down at that depth on air, alone, and totally narced out of his mind. this is a great sport, but you have to be able to account for yourself because the consequences can be huge.