Don't forget the bumbling hitman in The Whole Nine Yards
But I agree with JJ in general, he's better on stage in his own element, or in smaller doses on film. His bit about getting a vegetarian lecture was classic.
"My friend, he's a vegetarian, he says, 'Ya know, it's healthier not to eat meat.' So I held up my big, thick juicy steak and wagged it right in his face and said 'Ya know, this COW used to be a vegetarian...'."
And his Chewbacca impression is bang-on, from where I'm sitting.