 Complete the following phrase:  The conception of The Black Power Mixtape 1967-1975 is unique in that the 16 mm film footage used was originally shot by Swedish journalists in the 1960s and 1970s for Swedish Television, but the editing and release of the film did not take place for more than 3 decades after the era when it was discovered by director Göran Olsson. The setting of the footage featured in the documentary spans across the US and Europe and includes shots in Harlem, Oakland, and Brooklyn. Although Swedish journalists conducted the interviews, the film was co-produced by Americans Joslyn Barnes and actor Danny Glover through their independent film production company, Louverture Films. The production company is geared toward producing independent films of historical relevance, social purpose, commercial value and artistic integrity. The Black Power Mixtape 1967-1975 was screened at both the 2011 Sundance Film Festival and the 