Carl Colby is the son of William Colby, an intelligence operative who became director of the CIA during the Nixon and Ford years. Carl's documentary The Man Nobody Knew is the fascinating, maddening biography of a father whose career centered on secrets. "He didn't have a lot of romantic ideas about spying," Carl narrates. "He saw it for what it was: dirty business." There are two huge stories tugging at either end of Carl's film, and the result is that it feels like a compromise of each. by Ned Lannamann