The 83-year-old Belafonte presented the film, "Sing Your Song," at the Berlin Film Festival on Saturday. It is directed by Susanne Rostock and co-produced by his daughter, Gina. Belafonte was close in his youth to Brando, who died in 2004.

He says that little is known about the actor's work as a social activist, and when Brando died he was saddened not just at losing a friend and a great artist «but that also the history books had lost a story.» Belafonte says his daughter also was pressing him to make a film about his life and document the people with whom he has shared it.