Normally when I'm in the cinema I hate people talking but just occasionally someone says something funny about the movie and it gets the audience laughing. The one I remember was during Fellowship Of The Ring during the final battle with the Uruk-hai. When Sean Bean gets hit with an arrow for the second time someone shouted out "He's not quite dead!" followed by someone else shouting "He's getting better!" when he got back up. Following on from that was when someone called out "I'll bite your kneecaps off!" in between the Uruk-hai losing an arm and losing a head. It's impossible to take that scene seriously now.