Way back in early 2002, I recorded this track called ‘Slip’, an improvised piece, played with a slide on an overdriven, alternately-tuned electric guitar, which had a screwdriver placed between the strings and the fretboard:
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Little did 18-year-old me know, nine-and-a-half years later, that piece would be used as bumper music on a proper CD/DVD/book thing, underscoring words spoken by a proper famous movie person:

(You can preview the actual track – and even buy it, no less – on iTunes.)
In fairness, my bit makes up just a very very very very very tiny tiny tiny minuscule proportion of the release. Other folk, like my buddy Miss Daly, made much more substantial contributions. But still, it’s quite flattering to be included!