ArqArturo:Pan's Labyrinth has a great musical score, just like Hellboy 2. Ravenous' music has some interesting things, and I recommend you hear it. Also, back a while, there used to be a soundtrack for the Call of Chtulhu RPG. It's pretty good, and I've been looking for it for a while.
Daevid:From Hell is a great, spooky soundtrack. Carnivale has a gypsy feel to it I like. Chronicles of Riddick has an epic feel - great for Arcadia flashbacks. "Sorceror" by Michael Sterns integrates lots of frogs and insect noises and makes them super creepy. The Anastasia soundtrack has some good stuff in it. The movie version of "Once Upon a December" (not the terrible Leann Rhimes version) is very poignant for a Changeling trying to reclaim her life. Mary Shelley's Frankenstein and Bram Stoker's Dracula soundtracks get a lot of play in my games. Celtic Tale and Celtic Romance by Jeff and Mychael Danna have a good rural "old ways" feel to them. The Music of "Vas" has a great feel and stays in the background nicely. That's enough from me.