 Although all four Beatles are credited with directing the entire  film, Paul McCartney (qv) directed the bulk of the footage,  John Lennon (I) (qv) probably directed "I am the Walrus" and the  segment with Ringos Aunt eating a large pile of spaghetti and  George Harrison (I) (qv) probably directed "Blue Jay Way".  However, these are mere speculations, and all of the Beatles  submitted ideas to the film.