i also really liked Vanishing Point, which i saw for the first time recently.
Reservoir Dogs, too. Charlie Kaufman writes awesome movies as well. I mentioned Eternal Sunshine. Another great one is Synecdoche, New York. Fucking awesome movie, and this speech in it really gets to me when I'm in the right mood.
I hate Wes Anderson movies, or at least I hated The Life Aquatic, but I'm enjoying The Royal Tenenbaums which I'm watching for the first time. Started watching it a few days ago and will watch the rest tonight.