Monty Roberts, a California horse trainer nearing 90 and showing no signs of slowing down, recounts his life with horses, starting from his earliest days working in Hollywood westerns of the 1940s. Repelled by the accepted style of “breaking a horse’s spirit,” Roberts developed his own gentle approach to human interaction with horses in the hopes of someday transforming horse training standards worldwide. When his technique comes to the attention of Queen Elizabeth II, a friendship is sparked be...