I was going to say the soundtrack to American Beauty, because for some reason, I thought that Philip Glass wrote it. But I just looked it up, and he didn't. I was going to claim it as classical music because I thought Philip Glass wrote it.
The only other one that comes to mind is the music from the movie Wit, starring Emma Thompson. It is a classical piece written by Arvo Part. My dad sent me the cd out of the blue awhile ago, which surprised me. My dad is a classical music buff, but strictly a "meat and potatoes" kind of guy. His favorite is Mozart, and he hated to hear me play any music written after the time of Debussy. But here he was sending me a cd of music written by a contemporary minimalist composer.