Alan Yentob introduces John Scheinfeld's documentary Harry Nilsson - The Missing Beatle, a film that tells the story of the riotous life and music of Harry Nilsson.Nilsson, a friend and hero of Lennon's, was one of the most successful and influential, but least known, songwriters of his generation. He is remembered as much for his wild lifestyle as for his outstanding performance of Everybody's Talkin' from the movie soundtrack Midnight Cowboy.The film showcases new and archived audio and film, including home movies, music videos, promotional films and segments from the unreleased documentary made during the recording of Son Of Schmilsson, Did Somebody Drop His Mouse? The film also features interviews with Robin Williams, Yoko Ono, Van Dyke Parks, Randy Newman, Ray Cooper, the Smothers Brothers and Micky Dolenz.