The genesis of Magical Mystery Tour arose from Paul McCartney's idea to film a movie without a pre-established script, inspired by the philosophy of Ken Kesey's Merry Pranksters. The premise was a bus trip with ordinary people experiencing unexpected adventures. However, the filming was marked by the constant attention of onlookers, leading to a major traffic jam that culminated in the removal of the vehicle's signs. The film, broadcast in black and white during the 1967 Christmas holidays, received unfavorable reviews at the time, although it is said that Steven Spielberg praised it. The soundtrack, on the other hand, had a much more positive reception. A notable example is I Am the Walrus, a complex orchestral piece conceived by John Lennon as a satirical response to those who excessively analyzed the meaning of his lyrics, deliberately seeking it to have no clear meaning.
The release in compact disc (CD) format consolidated the American version of the album as the definitive one. Apple and EMI opted to include this eleven-track LP in the update of The Beatles' discography for the CD format. This decision was key, as it allowed Magical Mystery Tour to have a duration comparable to other albums by the band and avoided the need to include their 1967 singles in the compilation Past Masters, which was intended to gather all tracks not included in the main albums. Thus, songs like Hello Goodbye, Strawberry Fields Forever, and Penny Lane, along with Baby You’re a Rich Man and All You Need Is Love, found their definitive place in this work.