In the pre-Broadway run, song "Dance 10, Looks 3" was listed as "Tits and Ass", but it was changed when the production reached Broadway, the logic being if it were a surprise during the show, it would get a better audience reaction.
Pam Klinger (Maggie) and Charles McGowan (Mike) met during the production, became a couple, and eventually married.
Terrence Mann (Larry) later married actress/dancer Charlotte d'Amboise. Two decades after Mann made this movie, d'Amboise played the role of Cassie in the 2006 Broadway revival of "A Chorus Line".
Lea Thompson revealed in an interview with Nerdist Podcast that she was offered the role of Kristine DeLuca but turned it down to appear in Back to the Future (1985).
The director Sir Richard Attenborough wanted to cast only unknowns as the aspiring chorus members, and Audrey Landers was concerned that she was too well known from the TV series Dallas (1978) to make the cut. Fortunately, Attenborough had never seen Dallas (1978).