Brick

I give nine out of ten to the movie Brick (8.0 at IMDB), because it's kick-ass style-wise. It's a noir detective story, and the setting is high school USA. I think you will be pleasantly surprised if you like it (sic). It won the Sundance Film Festival Special Jury Prize for Originality of Vision. Here's a bit about the plot, and below is the trailer. If you're into those things.