When is a Soundtrack Not a Soundtrack?

WHEN ITS BY BADLY DRAWN BOY
The About a Boy soundtrack achieves that supremely difficult goal of evoking the movie while standing on its own musically. Snippets of short instrumental pieces are interspersed between many standout original songs that cover the gamut of musical styles from old pop to techno. Surprisingly it seems to be universally pleasing. Several of the kids' friends have asked what the CD was so they could buy it. There's no way they'd even acknowledge something was playing unless it was cool. I hear that Badly Drawn Boy's usual style is more experimental and adventurous, which is what you'd expect. A good soundtrack can't be too eclectic or it doesn't do its job. So what I need to find out ... which to try? The Hour of Bewilderbeast or Have You Fed the Fish?