Ava DuVernay - 'Origin'

The trailblazing filmmaker reflects on her circuitous path to the film industry, in which she originally worked as a publicist; the evolution of her social conscience; how her feelings about Hollywood have changed since 'Selma' and #OscarsSoWhite; and why she is so passionate about her latest film, which is about prejudice across history and geography and how the Pulitzer Prize-winning author Isabel Wilkerson, played by Aunjanue Ellis-Taylor, connected the dots in her book 'Caste: The Origins of Our Discontent.'

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