Secrecy is a 2008 documentary film directed by Harvard University professors Peter Galison and Robb Moss. According to its website, it is a film about the vast, invisible world of government secrecy, and features interviews with a variety of people on all sides of the secrecy issue, including Steven Aftergood of Federation of American Scientists, Tom Blanton of the National Security Archive, James B. Bruce who was a senior staff member to the Iraq Intelligence Commission, Barton Gellman a Washington Post journalist, Melissa Boyle Mahle a former CIA officer, the plaintiffs in United States v. Reynolds 1953 the case which established the State Secrets Privilege in the United States, Siegfried Hecker former director of Los Alamos National Laboratory, Mike Levin a former member of the National Security Agency, and Neal Katyal and Charles Swift the lawyers for the defendant in Hamdan v. Rumsfeld.
Source: Wikipedia