The first cut of this movie ran 24 hours long.
George Martin remixed The Beatles songs used in this movie for Dolby six-channel stereo used in theaters. He called the task one of the biggest challenges of his career.
The producers transferred all available footage and recordings to laser discs, logged each one into a database and used a computer to access cuts and assemble the edit. This was an early version of non-linear editing.
The movie's soundtrack album was the first to combine songs John Lennon performed with The Beatles with his solo work. It also marked the first appearance, in demo form, of his song "Real Love", which the surviving Beatles used as the basis for a new single for the "Beatles Anthology" series.