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, Fritz Weaver, Edward Binns, Larry Hagman, Sorrell Booke, Dana Elcar, and Dom DeLuise.

Fritz William Weaver was an American actor. He appeared in over 170 theatre, television, and film productions in a career spanning nearly 60 years.