Film presentation and talk back session: The Black Panthers: Vanguard of the Revolution, filmmaker Stanley Nelson, who won an Emmy for the PBS documentary The Murder of Emmett Till, three Emmys for Freedom Riders, and made an acclaimed film about Marcus Garvey, has for years aimed his probing but fair-minded lens on civil rights history. Along the way he realized he hadn’t really seen a film that covered the full and fascinating complexities of the Black Panther Party, a revolutionary Black Nationalist and socialist organization that operated from the late ’60s into the early ’80s. In his new film, Nelson gives voice to the Panthers who were there to tell their often misrepresented story.