Learn why "heads up tackling" is a practice being encouraged all across America, in this moving documentary about Texas teenager Chris Canales. A high school athlete whose injury during a 2001 championship game left him paralyzed, Canales joined his father and sports leaders both amateur and professional in advocating for changes on the field designed to save lives. Narrated by "Friday Night Lights" star Taylor Kitsch. 79 min. Widescreen (Enhanced); Soundtrack: English Dolby Digital 5.1.