Suggestions by @goodsaul_man

Edgar Wright

as Director in The Beatles: A Four-Film Cinematic Event

Robert Pattinson

as John Lennon in The Beatles: A Four-Film Cinematic Event

Nicholas Hoult

as Paul McCartney in The Beatles: A Four-Film Cinematic Event

Ben Whishaw

as George Harrison in The Beatles: A Four-Film Cinematic Event

Daniel Radcliffe

as Ringo Starr in The Beatles: A Four-Film Cinematic Event