Devil on Horseback

Real-life husband and wife John McCallum and Googie Withers top the cast of Devil on Horseback. A racetrack drama, the film centers on the activities of natural-born jockey Moppy Parfitt (Jeremy Spencer). As he gains prominence on the track, Moppy becomes insufferably egotistical. His "win at all costs" policy ultimately results in the unnecessary death of a horse. Much to the delight of horse owner Charles Roberts (McCallum) and trainer Mrs. (imdb)