Fail Safe is a 1964 Cold War thriller film directed by Sidney Lumet, based on the 1962 novel of the same name by Eugene Burdick and Harvey Wheeler. The film follows a crisis caused by a critical error that sends a group of U.S. bombers to destroy Moscow, and the ensuing attempts to stop the bomber group before it can deploy a nuclear first strike. The film features performances by actors Henry Fonda, Dan O'Herlihy, Walter Matthau, Frank Overton, Larry Hagman, Fritz Weaver, Dana Elcar, Dom DeLuise and Sorrell Booke.


United States Air Force General Black has been having recurring dreams in which a Spanish matador kills a bull before a cheering crowd. Black flies to Washington, D.C. to attend a conference led by Dr. Groeteschele, a political scientist renowned for his expertise on the politics of nuclear weapons.