An indie movie launching in September is holding a contest to find four songs for four scenes that need musical backing.
The movie is We Made This Movie from Rob Burnett and Jon Beckerman (creators of the TV show Ed; Rob is the Late Night with David Letterman producer). Because of the theme of the movie, they had the trailer produced by a high school student.
(Disclosure: I am an informal (= unpaid) marketing advisor to the project. I am also a Rob Burnett fanboy.)