Truth is a 2015 American political docudrama film written and directed by James Vanderbilt, in his directorial debut. It is based on American journalist and television news producer Mary Mapes' memoir Truth and Duty: The Press, the President and the Privilege of Power. The film focuses on the Killian documents controversy, and the resulting last days of news anchor Dan Rather and producer Mary Mapes at CBS News. It stars Cate Blanchett as Mapes and Robert Redford as Rather.