A wall-to-wall immersion in “a tangy raw stew of history” (Entertainment Weekly), courtesy of an extraordinary trove of documentary footage of Stokely Carmichael, Bobby Seale, Angela Davis, Eldridge Cleaver, and others captured in remarkably unguarded interviews. This footage, shot by Swedish journalists at the height of the Black Power movement, was lost for 30 years until director Göran Olsson and coproducer Danny Glover brought it to light and presented this 2011 mosaic of images, music, and narration. It’s an exhilarating account of an American revolution.