I don't think that Carnival has movie theaters, if they do, they have escaped my attention, but we do watch them in the cabin. Only on sea days. Usually every afternoon, after much activity, we retire to the cabin to relax, curl up on the bed and watch a movie. Greg usually goes to sleep and has to catch the end of the movie next time it airs, but I normally do not take naps, so I make it all the way thru.