Name Your Favorite Movie

I have a rather simple question for you guys. It's really easy and anybody can answer it.

What is your favorite movie?

That's it. Just name your favorite movie. And you can name more than 1. You can name only 1. You can list 100, a thousand, hell a million if you want.

And by "your favorite movie" I mean what movie/movies would you take with you on a desert island? What movie did you see that made you go "I need to buy that the instand it comes out on DVD?" Anything like that.

Even though I'm sure you guys know mine by now, I'll list some:
Pulp Fiction
Clerks
Snakes on a Plane
Ed Wood
Borat
Bubba Ho-Tep
Rear Window

That's just to name a few.

This is my new desktop: