At the risk of losing my man card, I am definitely downloading the new Twilight soundtrack when it comes out. I've never read the books or seen the movies, but anything that has The Black Keys and The Dead Weather back to back will be bought by me.
This is clearly cheating.likewise for me, The Last Waltz
Back when I was a kid, one of the first albums my dad bought for his new stereo was the "FM" soundtrack. Two LP's of some of the greatest classic rock of the mid-late 70's. Oh, and it had the Eagles, too. And Dan Fogelberg. WTF?
When I was in high school, the soundtrack to "Heavy Metal" was a must to be playing from the speakers of everyone's Pinto, Nova, and Vega.