What classic movie should I watch?

Trivia Art got the sweetest high def TV ever last weekend for the crib, and with the Eagles being unwatchable, I need something else to watch on that giant beauty on weekends. So I got to thinking, and realized that I have not watched a lot of the so-called "Greatest Movies Ever". I thought a good way to motivate me to do so would be to watch some of these films and write my reviews of them afterward. And I want you guys to help me figure out what to watch. So I'm posting a poll below of some great movies I've never seen. Let me know which one I should watch this weekend. I'll check the standings at 5 p.m. manana and watch the one with the most votes by then.