Years later, in The Long-Distance Runner: An Autobiography, Richardson reflected on the role the play played in his life: “I couldn't have articulated it, having never been introspective...(but) The Entertainer was a key moment in my development, because all the ideas and convictions I was to work with afterward were crystallized in its making.”[3]
Writing for TCM, Felicia Feaster reports Richardson's memories of creating the play as well as the film: "The character of Archie Rice, which tapped into aspects of Larry's personality that he'd never used before, immediately obsessed him. He accepted the play before it was even finished." After rehearsals began, Richardson recalled, “His understanding of Archie was so complete that he could make anything work. He infected everyone with his enthusiasm.“
The original music for the play was composed by John Addison.[18] Melodies by Thomas Hastings ("Rock of Ages"), Arthur Sullivan ("Onward Christian Soldiers" and "The Absent-Minded Beggar"), and George Ware ("The Boy I Love is Up in the Gallery") are also incorporated.[19]