Note that in the montage shortly after the car runs away from the Narrator the first time when the clip from 'I Must Be In Love' is shown, the caption on the screen says "A Hard Day's Rut-1964"

Later on, shortly after the cover of Ron Nasty's book is shown, the Narrator says that the Rutles first made a movie in 1965! "A Hard Day's Rut" was their first movie! The release year mysteriously jumps ahead!