I bought Skyrim about two months ago and still can't get it's main theme out of my head. The entire score is absolutely beautiful, moving and just so kickass with it's choral chants. It really catches your imagination and lets you just lose yourself in the world of Tamriel. This has to be my favourite game soundtrack that I have heard. What's yours? For film, I have to say The Lord of the Rings Trilogy is my favourite without a doubt.