Black nationalism lives and breathes in Göran Hugo Olsson’s remarkably fresh documentary. Sampling and lightly annotating hours of news footage discovered in the Sveriges Television basement, Black Power Mixtape opens with the 1967 arrival of “fair-skinned and starry-eyed” Swedish journalists in Hallandale, Florida, and ends with excerpts from the 1975 documentary Harlem: Voices, Faces. In between, the Swedes report on political trials in Oakland and breakfast programs in New York; they follow Bobby Seale through Stockholm, visit Eldridge Cleaver in Algiers, and hang out with Stokely Carmichael in his mother’s living room. The Swedish footage is distinguished from the American tele-journalism of the period by its interest in hearing from the most articulate proponents of black power and the programmatic nonviolent attempt to “intensify the struggle.” (NR) J. HOBERMAN

Sun., Jan. 22, 4:40 p.m., 2012