Desc: Treasures of the Academy: Guardians of History: Directed by Mark McLaughlin. With Michael Apted, Ed Carter, Carla Garapedian, Hal Geer. Documentary Channel's partnership with the Academy of Motion Picture Arts and Sciences continues to broaden with this in-depth look at the importance of film preservation. John Huston's World War 2 documentaries, "Battle of San Pietro" and "Let There Be Light," which have been preserved by DOC and AMPAS, are highlighted as examples of film as living history. Featuring interviews with John Huston's son, Tony, and top directors and historians who shed considerable light on this important, exciting subject.