but it was just 20 hours in, it was unbear-- this would have been embarrass sipping efian 20 hours in for it. >> is it the kind of thing you're in the ocean and wishing you could go home? >> no, i was wishing i could drink the water. ( laughter ). >> did it affect why you were acting? >> yeah, apparently it helped. yeah. so-- ( applause ) >> dave: well, there you go. >> but, actually, we sung live for the movie. and that's the only scene we could not sing live. i couldn't have done it otherwise. obviously, the singers need water. otherwise you know what happens to your throat. but because of the water in the water tanks, that was the only scene in the whole movie we did later. >> explain this to me because you're an actor and this is a big-deal movie and you're in the water and pulling a ship ashore are and you really have your work cut out for you, and on top of everything else you have to sing right there. that's double the pressure, right? you're going to sing later, you're going to sing now. >> there are two things, yes, there's the pressure because every day you wake up eye would

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