I know he's probably not up there with the greats but I loved the movie soundtrack to The Mission by Ennio Moricone and the Passion by Peter Gabriel.
I have a fairly large collection of classical music but these two artist helped me expand my 'classical' tastes in a more modern direction.
I loved Amedeus.
The scene at the end of a veitnam movie, (the name escapes me) with a man being shot as the helicopter rises still haunts me, partially because of the music.
If you're interested, there are some really good tapes/books for children put out by the CBC here in Canada, semi-fictional, about the lives of the great composers, Vivaldi, Beethovan ect. A really good introduction to the classics. http://www.fredflaxman.com/ClassicalKids.html