In the film, Stephen Dorff as Sutcliffe played a Hofner President Bass with chrome humbucker pick-ups. In real life, Stuart Sutcliffe played one with wood single coil pick-ups.
The soundtrack does not feature a single Lennon/McCartney composition.
1990s punk-rock musicians and techniques were used to create the film's soundtrack, instead of the precise styles of the period, to better convey the way the music felt to the early Beatles audiences; "it was the punk of its day".
Ian Hart was cast a full year before production started. This was because director Iain Softley had seen his performance as John Lennon in "The Hours and the Times".
Frieda Kelly, who plays George's mother, was a secretary of the Beatles' Fan Club in its earliest days. She even gets a mention on the Beatles' 1963 Christmas message...from George.
Some of the paintings Stu makes in the film are reproductions of actual paintings by Stuart Sutcliffe.
Stephen Dorff was the only actor of the group who could actually play his instrument (he's a professional musician in real life). Ironically, his character, Stuart Sutcliffe, could not play his instrument, which is one of the chief reasons the real Paul MacCartney later cited as to why he wanted Stuart out of the band.
Though there are no actual Lennon-McCartney songs in the film, the soundtrack does comprise of The Beatles well-known Hamburg/Cavern Club repertoire. Among the songs featured are "Twist and Shout" which would be performed on their first album "Please, Please Me" and "Long Tall Sally" which was a B-Side single opposite "I Feel Fine".
When Klaus Voormann introduces himself to the Beatles, he mentions that he's an artist and lays a stack of album covers on the bar. Voorman would later go on to create the covers for The Beatles albums "Revolver" and "The Beatles Anthology" (One large painting cut into thirds for the three volumes).
"My Bonnie" as heard performed in studio is the original Tony Sheridan version with The Beatles backing him.
The shooting lasted 6 weeks. It took place in Liverpool in March 1993 and in Hamburg and London in Spring 1993.