Popularly known as the "horse whisperer," Buck Brannaman is the American cowboy whose highly developed sense of empathy enables him to work miracles with unruly and damaged animals. In Cindy Meehl's loving documentary, scenes of Brannaman doing his quietly dramatic work are interspersed with background info on the early hardships that made his gifts possible. Throughout, director Meehl keeps the tone and emphasis just right: This isn't a movie about a magical guru, but an amazing human. (SIFF Cinema, 321 Mercer St, thestranger.com/siff, 7 pm, $11)