David Lloyd Wolper was an American television and film producer, responsible for shows such as Roots, The Thorn Birds, North & South, L.A. Confidential, and the film Willy Wonka & the Chocolate Factory. He also produced numerous documentaries and documentary series including Biography, The Rise and Fall of the Third Reich, Appointment with Destiny, This is Elvis, Four Days in November, Imagine: John Lennon, Visions of Eight, and others. Wolper directed the 1959 documentary The Race for Space, which was nominated for an Academy Award. His 1971 film about the study of insects, The Hellstrom Chronicle, won an Academy Award.