That movie has too many good scenes to list but I love the part where they are reading the carvings in the cave and the knight's subsequent argument on whether the guy actually took the time to carve out "agghhhhhhh..." before he died.
Bring out your dead! Bring out your dead!
black humor.
I think Jack Nicholson in Anger Management is simply hilarious!
And of course, so many scenes from Animal House!