Fight Club is the essential pick here.
Also, I never saw what my friends saw in Magnolia or Punch Drunk Love. Or I guess I saw it, but I didn't like it.
I liked The Departed, but I would've liked it a lot better without that fucking rat that ran across the screen at the end. Jesus Christ, that was lame.
I also like Lost In Translation, but I can see why people don't, and it definitely ain't no Best Screenplay. My favorite thing about it is when I saw it in a shopping mall movie theatre that was empty except for me and my companion in the back and two blue-haired old ladies up in front. During the opening shot of ScarJo's posterior, I heard the one old lady do that disapproving lipsmacking sound that old ladies make and go "Hm.......SO......We're looking at someone's bottom, then." All-Time Classic.