John screwed the producer of this film over good
I was listening to the DVD commentary last night and it was funny that John Lennon was so insensitive and lazy and waited till the movie was almost finished and THEN he came in and scribbled out "Hey Bulldog" in the studio with Paul and forced the producer of this film to cram that sequence into the film when there was really no place for it.
That made the film late going to United Artists and so they were heavily fined (something like 10,000 pounds that had to come out of the guy's pocket, not the Beatles and they were just throwing money away in those days to stupid people like "Magic" Alex and the Fool) cause it was late.
AND THEN....da da da...nobody liked the song so McCartney asked them to cut the sequence from the final release (although it did show at the World Premiere once)
So he should have demanded John and Paul pay him back.