Colossus: The Forbin Project
Colossus: The Forbin Project (a.k.a. The Forbin Project) is a 1970 American science fiction thriller film from Universal Pictures, produced by Stanley Chase, directed by Joseph Sargent, that stars Eric Braeden, Susan Clark, Gordon Pinsent, and William Schallert.
Dr. Charles A. Forbin is the chief designer of a secret project, "Colossus", an advanced supercomputer built to control the United States and Allied nuclear weapon systems. Located deep within a mountain and powered by its own nuclear reactor, Colossus is impervious to any attack. After Colossus is fully activated, the president of the United States proudly proclaims that Colossus is "the perfect defense system".