Actress and director Angelina Jolie has recorded a tribute to Louis Zamperini for a Radio 4 documentary about the late Olympian and prisoner of war. In the programme, to be broadcast on Friday, Jolie calls Zamperini "one of the greatest people I've ever met". "He was somebody that was so full of love and life and it was contagious." Jolie has made a film about Zamperini, entitled Unbroken, that dramatizes his experiences at the 1936 Berlin Olympics and during World War Two. Born in 1917 in New York, Zamperini competed in the 5,000 metres at Berlin before enlisting in the US Army. He served as a bombardier during the war and survived 47 days adrift on a raft after his plane crashed into the Pacific. Eventually picked up by a Japanese patrol, he spent the next two years in prison camps before finally returning home.