Talk show host Oprah Winfrey to play brothel madam

London: Talk show queen Oprah Winfrey has been roped in to play a brothel madam in the big screen adaptation of Lynn Nottage`s Pulitzer prize-winning book "Ruined".

The novel is about a woman in Congo who tries to stop women working for her from getting caught in the war between rebel armies and the country`s government. Winfrey will play Mama Nadi, reports.

Winfrey, who was last seen in 1998 film "Beloved", is best known for her performance in the 1985 release "The Colour Purple".