I hardly ever write about movies here, but I had to make an exception for Sin City. Stop your download and actually pay for this one — it's absolutely incredible. I'm not sure I've ever seen such wonderful cinematography. I'll be the first to admit that I'm no Frank Miller fanboy, hell, I've never even seen/read any of his work (which is probably why my fascination with the film is so pronounced — I have no book-to-movie qualms), but this thing knocked me on my ass.
I guarantee that you will walk out of the theater going, "What the fuck was that?" It's almost like they turned a comic book into one of those flip-book things to create the motion. The genius use of color, the CG, the lighting, the camera angles... brilliant.