"People told me this was an unadaptable book, so the only logical thing to do was to try to adapt it," says writer, producer and filmmaker Ava DuVernay of her work taking the award-winning title "Caste" from page to screen. In conversation with Pat Mitchell, DuVernay talks about the resulting film, "Origin," and discusses her process for turning ideas into pictures that pack a punch.

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Christians Will Win Down Here