I think the music Eddie Vedder created for Into the Wild was pretty much perfect. Each song fits perfectly in the scene, whether it be with the landscape (which is breathtaking) or the emotion that is supposed to be conveyed. I was quite taken with the music when paired with the film.
Once wins my vote for greatest soundtrack ever, though. The songs are made for the radio, yet we watch this movie where they write these songs, play them and make an album. It's pretty awesome. I've never liked the music from a musical so much as I did with Once. I mean, Falling Slowly won a frickin Oscar! Woah!
I don't think I'd sit around and listen to the There Will Be Blood soundtrack, but the music Johnny Greenwood crafted fit the film perfectly. It made a disturbing, haunting film even the more haunting. The score really got shafted by not being nominated. Stupid rules.
The soundtrack is almost nightmarish it's so good.
The Virgin Suicides soundtrack Air did for the film is extraordinary. I just love songs that are completely crafted around the movie and while I love a soundtrack like Garden State, the Virgin Suicides soundtrack is the movie.