This image released by The Weinstein Company shows Idris Elba, as Nelson Mandela, left, and Naomie Harris as Winnie Mandela in a scene from "Mandela: Long walk to Freedom. The film will get an audience from President Barack Obama, as well as a screening at the Kennedy Center hosted by Hilary Clinton. he Weinstein Co. told The Associated Press that Obama will screen the film Thursday at the White House. Mandela’s daughters Zindzi and Zenani Mandela will join, as will the film’s stars, Idris Elba and Naomie Harris. (AP Photo/The Weinstein Company, Keith Bernstein)NEW YORK (AP) — The Nelson Mandela biopic "Mandela: Long Stroll to Freedom" will get an audience from President Barack Obama, as well as a screening at the Kennedy Heart hosted by way of Hillary Clinton.