The film premiered at the 2013 Sundance Film Festival on January 21 , 2013 . It also screened at The San Francisco International Film Festival , Full Frame Documentary Film Festival , Seattle International Film Festival , The Los Angeles Asian Pacific Film Festival , Environmental Film Festival at Yale , Environmental Film Festival in the Nation 's Capital , RiverRun International Film Festival , Atlanta Film Festival , Nashville Film Festival , Green Film Festival in Seoul , Docville International Documentary Film Festival , Lincoln Film Society - Season Of Cambodia , The Museum of Modern Art ContemporAsian Film Program , Sydney Film Festival , Biografilm Festival , Jerusalem Film Festival , DocFest Munich , and many more prior to its theatrical release and broadcast worldwide
2013 Sundance Film Festival
2013 Sundance Film Festival
A River Changes Course