Mr Blue Sky: The Story of Jeff Lynne & ELO

It contains an interview of Paul McCartney, talking about the third unfinished and unreleased single worked on with the three remaining Beatles in 1995:

There was another one we started working on but George went off it. We were like, ‘No George, this is John’. He said, ‘It’s still rubbish’. ‘Ok, then’. So that one is still lingering around. I’m gonna nick it with Jeff and do it, finish it, one of these days.

Paul McCartney