Story: "The Happy Ending" (filmed as A Homespun Vamp (1922)_).
(5 October 1918-October 1918). Broadway stage play: "I.O.U.". Written by Hector Turnbull and Willard Mack. Based on the film, The Cheat (1915). Belmont Theatre: 10 performances. Note: Possibly the earliest stage production based on a film.