The Eternal Sunshine of the Spotless Mind
Three things about this movie:
1) Jim Carrey is good. Great, actually. He's figured out how to act straight.
2) Charlie Kaufman has finally figured out how to write a satisfying ending.
3) I'm going to go out on a limb and say that this is my favourite Charlie Kaufman movie. And I adore all of Charlie Kaufman's movies. (Though, I haven't seen Human Nature.)