I love movie soundtracks. Off the top of my head:
LOTR (all)
Sweet November
O, Brother, Where Art Thou
City of Angels
Last of the Mohicans
Requiem for a Dream
The Twilight movies have pretty good soundtracks
Romeo + Juliet
Legend (the Tangerine Dream stuff)
The Fountain
I really like the Harry Potter soundtracks but I'm not sure which is my favorite
Cold Mountain
The Chronicles of Riddick
Tomb Raider
West Side Story
Amadeus
Out of Africa
Somewhere in Time (The movie with Christopher Reeve, and Jane Seymour)
Crouching Tiger, Hidden Dragon
To Kill a Mockingbird
Singin' in the Rain
High Fidelity
Star Wars (the original trilogy stuff)
Garden State
Terminator 2
....so many.