Gotcha William on those 2 examples posted ...
A riff on what you asked - What about when the music artist changed the track for the movie ?
Back in that day - mid '80's after i had gotten a cassette demo up to Nic Roeg's hotel in midtown, fielded the call from his music super Ray Williams, licensed Death Comet Crew's "America" for their film "Insignificance" ( you can still hear it, in elevator scene as the Indian and crew close the door and ride ) -
we, the group thought it completely essential to do a new version of the track.
Completely essential !
Nic wasn't having it.
A bit off topic , still ...
He did though help himself to another track on my demo tape - one of the first things i did in a Studio after Ike Yard and after getting bk from W Berlin and originally done for a UK 'Anti Vivisection' Comp.
This track was made mostly of samples, from "Day After Tomorrow", US made movie about those rockets red glare going up in one's back yard, Berlin Zoo,
Nagisa Oshima from TV interview and a bit of ol' Diamanda Galas wafting through a section.
Roeg put it in the movie at least a couple times to illustrate his ' Atomic, end of the world' / 'rape of the Earth' ( his words i believe )- the visual is close up smoking wreckage pile.
He used it as his temp music.
After i complained that well, i certainly wanted Nic to ' use anything ' from the tape that felt like using - of course i meant one 'has to pay for that one too'.
He / they wanted a free bee !
And i would have given it to them, but that reply did not fly with me.
In the end, i was in NY, they were in London and the twain did not meet.
Nic's music man Stanley Myers had an ' intern ' ( not too sure interns were named just that then ) or staff member , one Hans Zimmer.
Maybe Hans could have a go at the scene ...