Trivia

Mark Lindsay Chapman was initially cast as John Lennon but lost the part because his name was similar to that of Lennon's assassin Mark David Chapman. Chapman later played Lennon in Chapter 27 (2007).

The film takes place from August 19, 1966 to December 8, 1980.

The docudrama was produced with a great deal of cooperation from Yoko Ono and the Lennon estate.

Mark McGann's elder brother Paul McGann later played the Eighth Doctor in Doctor Who: The Movie (1996) while Peter Capaldi later played the Twelfth Doctor in Doctor Who (2005).

Mike Myers, who plays the Western Union boy who dresses exactly like John Lennon, has parents who were born in Liverpool.