On September 9th in New York city (September 23rd, nationally) Sundance Selects will be premiering a powerful new film built around never-before-seen interviews documenting the years we have come to think of as “the civil rights era”–and the rise of the Black power movement–which were discovered in the basement of a Swedish TV station after decades of neglect. Add a score by our own Questlove and Om’Mas and new interviews with Questo, Talib Kweli and Erykah Badu and you get the Black Power Mixtape 1967-1975.The original trove of interviews includes Angela Davis, Bobby Seale, Huey P. Newton, Stokely Carmichael, and Kathleen Cleaver so you know from the door it is serious business. To see (and hear) how it all fits together watch the trailer above and stay tuned for more info (poster after the jump).