The movie, Brick.

Miss C loved the movie Brick. It's a Maltese Falcon style, film noir, done in a southern California high school setting. It is cool, cool, cool. Every character in a detective film is covered by teens, the gumshoe, the femme fatale, the muscle, the kingpin, the rats and druggies. Great dialogue and repartee abound. Miss C highly recommends this film.