Paul McCartney was in too much 'emotional pain' to keep the Beatles going after John Lennon left
The musician also acknowledged he underestimated bandmate George Harrison's songwriting abilities.
Peter Jackson's Beatles documentary finally gets a release date, thanks to Disney
Disney acquired the international rights to the film and will release it in theaters this September.
Get in tune with these 18 upcoming music biopics
Will these music biopics hit the right note or turn out tone deaf? Click through the gallery to see 18 upcoming movies (and one TV series!) that will chronicle the iconic lives of famous musicians — and who's set to star.