DOCUMENTARY SERIES PREMIERE: This four-part nonfiction series slips into the Sunday night Showtime slot established by The Circus – a great place to watch a weekly take on political maneuvering. This new effort is from director Alex Gibney, and is based on Tim Weiner’s book Enemies: A History of the FBI. It examines the complex ways, over the years, in which the White House, the courts and the FBI have functioned. And, often, dysfunctioned.