In 1940 Darmour was entrusted with production of Columbia's serials. Darmour, already very busy with feature films, placed serial veteran and comedy director James W. Horne in complete charge of the serial unit. Horne freely indulged his sense of humor in such serials as The Green Archer, Terry and the Pirates, and Holt of the Secret Service (Holt's last film for Darmour, and only serial). Horne's serials combine action and adventure with tongue-in-cheek comedy.
