Ava DuVernay is a critically acclaimed, Hollywood film-maker who's not afraid to push the boundaries. 

She's behind films such as Oscar nominated Selma, and documentary 13th. 

Her latest film has been labelled rebellious and radical - based on the book Caste by Pulitzer Prize winning author Isabel Wilkerson, the film is called Origin.

Ava joined Francesca to discuss her newest film. 

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