A film based on Nelson Mandela's bestselling autobiography "Long Walk to Freedom" will be released in November, producers said on Monday. The biopic, entitled "Mandela: Long Walk to Freedom", is to star British actor Idris Elba as the iconic anti-apartheid hero and will trace his life from childhood to imprisonment and presidency in 1994. "We are honoured to have had Madiba license us the film rights to his fascinating life story