AS THE NAME suggests, The Black Power Mix Tape is not the definitive story of Black Power. It is, however, an incisive look back to a critical period in American history when the struggle for black liberation took a decidedly militant turn. Comprised entirely of archival footage, and narrated by the likes of Erykah Badu and Harry Belafonte, the film includes never-before-seen interviews with Trinidad-born Stokely Carmichael (Kwame Ture), Angela Davis, Eldridge Cleaver and others.