When we were on patrol in our submarines we would have afternoon and evening movies. No video in those days so it was 16mm.

We had Watership Down as one of them. The next day the chefs were seen wearing hand painted t-shirts as they dished up roast bunnies. The logo? 'You've read the book, seen the movie, now eat the cast'

Even caught the skipper singing Bright Eyes as he peeered through the periscope!