It is likely one of the most iconic pictures of our time: two African-American medal winners on the 1968 Olympics standing in silent protest with heads bowed and fists raised as “The Star Spangled Banner” is performed. This documentary movie is a revealing exploration into the circumstances that led runners Tommie Smith and John Carlos to that historic second on the Mexico Metropolis Video games, mining the nice private dangers they took and the next fallout they endured.