Forgot to add, School Daze is another of my faves! As a matter of fact, just about all of Spike's movie soundtracks!
My favorite movie soundtracks have to be eurotrip and harold and kumar go to white castle
I've only purchased 2 movie soundtracks in my life...not too big on movie music but my favorite is "She's Gotta Have It" (on vinyl no less...lol). It's a mellow jazzy soundtrack performed by Spike Lee's dad's band. I also bought "I Like it Like That" (spicy salsa soundtrack from a latino/ghetto movie)
Of course, Purple Rain, that goes without saying, but what other soundtracks would you rate? I loved "That's The Way of the World" by EW&F, but since the movie was never released (at least not in the US), not sure if that counts! What's you're picks?