The animated feature film inspired by and adapted from themes and ideas in songs by The Beatles and starring cartoon characters based on John, Paul, George and Ringo made its world premiere at the London Pavilion in Piccadilly Circus on July 17, 1968.

All four Beatles were in attendance: John Lennon with Yoko Ono, Ringo Starr with wife Maureen Starkey and George Harrison accompanied by his spouse Pattie. Paul McCartney came solo; three days later his fiance Jane Asher announces that their engagement has ended.

Also at the premiere were Keith Richards and members of The Who and Status Quo. As was typical of any event in the 1960s where the Beatles were present, a mob scene ensued on the street outside.

The Beatles themselves only appeared in a short live-action snippet at the end of Yellow Submarine and their characters were voiced by professional actors. The film has come to be recognized as a genre-changing work that led to animation gaining greater respect as an art form and Time magazine noted that it “turned into a smash hit, delighting adolescents and esthetes alike” Although the band members were initially skeptical about the film, in 1995 all three surviving Beatles expressed an appreciation for it in The Beatles Anthology documentary series.