Funny you say that when Paul did re-record several Beatles tracks in his Give My Regards to Broad Street (1984), which got pretty bad reviews and even amongst Beatles and Paul fans is seen as a pretty bad entry in his canon.
Ringo (who was in the movie) refused to play on the re-recordings, because:
- If they were worse than the originals, he’d feel upset with himself.
- If they were better than the originals, then he’d never be able to listen to the original recordings.