US president, Barack Obama hosted a special screening of Mandela: Long Walk To Freedom at the White House last night in the company of producer Anant Singh, Mandela's daughters, Zindzi and Zenani, lead actors Idris Elba and Naomie Harris and director, Justin Chadwick.Also in attendance were South African ambassador to the United State, Ebrahim Rasool; former US ambassador to South Africa, Donald Gips and his wife, Gill; editor of Time Magazine, Richard Stengel and US distributor of the film, Harvey Weinstein and his fashion designer wife, Georgina Chapman.