Sometimes, a single decision can change the course of history. Join journalist and author Isabel Wilkerson as she tells the story of the Great Migration, the outpouring of six million African Americans from the Jim Crow South to cities in the North and West between World War I and the 1970s. This was the first time in American history that the l...

"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...