The Black Power Mixtape 1967-1975 is a 2011 documentary film, directed by Göran Olsson, that examines the evolution of the Black Power Movement in American society from 1967 to 1975. Wikipedia Release date: September 9, 2011 (USA) Director: Göran Olsson Initial DVD release: November 11, 2011 (Sweden) Awards: Sundance Film Festival World Cinema Documentary Editing…