The Millionaires' Unit is a 2015 American documentary film by Darroch Greer and Ron King about the First Yale Unit, a group of Yale college students who took the initiative to learn to fly in preparation for America's entry into the Great War. Based on a book by author Marc Wortman, the film is narrated by Academy Award-nominated actor Bruce Dern. It was filmed in the U.S., England, France, Belgium and New Zealand over the course of seven years. The documentary charts the romantic, little-known story of the origins of American airpower and features sequences filmed air-to-air with original WW1 planes.