Al Capp veterans returning from the war. Capp was also involved with the Sister Kenny Foundation, which pioneered new treatments for polio in the 1940s. Serving in his capacity as honorary chairman, Capp made public appearances on its behalf for years, contributed free artwork for its annual fund-raising appeals, and entertained crippled and paraplegic children in children's hospitals with inspirational pep talks, humorous stories and sketches. In 1940, an RKO movie adaptation starred Granville Owen (later known as Jeff York) as Li'l Abner, with Buster Keaton taking the role of Lonesome Polecat, and featuring a title song with lyrics by Milton Berle.
Al Capp him to colleagues and editors, claiming that Capp had "stolen" his idea. For years, Fisher would bring the characters back to his strip, billing them as "The ORIGINAL Hillbilly Characters" and advising readers not to be "fooled by imitations". (In fact, Fisher's brutish hillbilly character—Big Leviticus, created by Capp in Fisher's absence—bore little resemblance to Li'l Abner.) According to a November 1950 "Time" article, "Capp parted from Fisher with a definite impression, (to put it mildly) that he had been underpaid and unappreciated. Fisher, a man of Roman self esteem, considered Capp an ingrate and a whippersnapper, and watched his