[youtube http://www.youtube.com/watch?v=jFWHNpfjByQ&w=480&h=390] The Black Power Mixtape 1967-1975 mobilizes a treasure trove of 16mm material shot by Swedish filmmakers, and co-producer Harlemite Danny Glover .. Become a Harlem Insider! Sign-Up for our Newsletter *Select list(s) to subscribe toHarlem World Magazine Example: Yes, I would like to receive emails from Harlem World Magazine. (You can unsubscribe anytime)Constant…