Original RKO One Sheet Poster (27×41) for the Gordon Sparling equestrian short subject, ALL JOKING ASTRIDE (1952) starring Canadian funnyman John Pratt. Originally produced and released in Canada in 1950, this film chronicles a young man who joins a horse-riding academy to learn about riding, but he finds it very different from his expectations. This original one sheet poster is linen-backed and in very fine condition with just a little touch-up in the border area.