“Run Free: The True Story of Caballo Blanco,” a feature-length documentary about ultra-running legend Micah True, will screen at the Edge 12 in Birmingham on Thursday, March 10 at 7 p.m. The one-night-only event is sponsored by the Birmingham Ultra Trail Society. Tickets for the event are $12 in advance and can be purchased online here, or $15 at the door the night of the show. A percentage of ticket sales to this screening will go toward BUTS. Additionally, another percentage of the film’s profits, including from DVD sales, will go to benefit Norawas de Rarámuri (Friends of the Running People), the non-profit agency founded by Micah True to preserve traditional Tarahumara culture. Norawas de Rarámuri works to provide maize, non-GMO seed corn, and cash awards for participating Tarahumara runners, both men and women alike. On this way, the organization offers Tarahumara families nutrition during drought and support for a tradition of small farms necessary to both physical and cultural survival. For more information about the film, go to www.runfreemovie.com