Here you can post your favourite part of the film: Ice Age 3.
Mine is near the end of the film, when they are attacked by Rudy, and Buck distracts them, letting them escape. He runs away from Rudy, and then ... Rudy steps on him. (there is a moment of astonished silence)
Then, Buck jumps out from between Rudy's toes and says: "Pop goes the weasel!" before running away. I was still laughing the next morning!!