Believe it or not, those underwater shots in the movie were considered to be among the best of its kind at the time. Some of still holds up today, I think. It's a classic film. I hope the remake in 2011 does a decent job.
Thanks guys! I'm very pleased with it. I totally recommend this one. If any of you are still on the fence on this one, let me reassure you by saying it's quickly become one of my favorite pieces. It truly is a beauty to behold.