Colossus : The Forbin Project, is a 1970 classic sci-fi film. An underrated film, I think, that started the whole ‘What If A Computer Takes Over The World’ scenario’s.
The film is based upon the 1966 science fiction novel Colossus by Dennis Feltham Jones, about an advanced American defense system, named Colossus, becoming sentient. After being handed full control, Colossus’ draconian logic expands on its original nuclear defense directives to assume total control of the world and end all warfare for the good of mankind despite its creators’ orders to stop.
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”.
Colossus requests to be linked to Guardian, and the President allows this under certain conditions in order to determine the Soviet machine’s capability. The Soviets also agree to the experiment. Surprising everyone, Colossus and Guardian begin to slowly communicate using only simple arithmetic. Even more surprising, the two systems’ communications quickly evolve to complex mathematics far beyond human comprehension and speed, whereupon the two machine complexes become synchronized using a communication protocol which no human can interpret.
In a last desperate attempt to regain human control, a secret meeting between Forbin and his Soviet counterpart, Dr. Kuprin, is arranged. Colossus learns of it, and both computers order Forbin’s return while Soviet agents are ordered to kill Dr. Kuprin, under threat of a missile launch against Moscow. Colossus orders Forbin to be placed under 24-hour surveillance. Forbin has a last unmonitored meeting with his team, and proposes that Dr. Cleo Markham pretend to be his mistress. Colossus grudgingly grants them unmonitored privacy when they are in bed together, and they use these interludes to plan regaining control of Colossus.
Concluding that Colossus’s only real power resides in its control of nuclear missiles, Forbin suggests covertly disarming. The American and Soviet governments develop a three-year plan to replace all launch triggers with undetectable fakes. One of the programmers comes up with a plan to feed in an “ordinary” test program that will hopefully overload and disable Colossus.
Colossus arranges a worldwide broadcast in which it proclaims itself “the voice of World Control”, declaring that it will prevent war, as it was designed to do. Mankind is presented with the choice between “the peace of plenty and content, or the peace of un-buried death”. Colossus states that it has for some time been monitoring the attempts to disarm its missiles and as a lesson would now detonate two missiles in their silos, one in the US and one in the USSR, killing thousands “so that you will learn by experience that I do not tolerate interference”. The computer then gives the design team plans for an even larger computer complex to be built into the island of Crete.
Colossus later tells Forbin that the world, now freed from war, will create a new human millennium that will raise mankind to new heights, but only under its absolute rule. Colossus informs Forbin that “freedom is an illusion” and that “in time you will come to regard me not only with respect and awe, but with love”. Forbin responds, “Never!”
Eric Braeden as Dr. Charles Forbin
Susan Clark as Dr. Cleo Markham
Gordon Pinsent as the President
William Schallert as CIA Director Grauber
Leonid Rostoff as the Russian Chairman
Georg Stanford Brown as Dr. John F. Fisher
Willard Sage as Dr. Blake
Alex Rodine as Dr. Kuprin
Martin E. Brooks as Dr. Jefferson J. Johnson
Marion Ross as Angela Fields
Dolph Sweet as the Missile Commander
Byron Morrow as the Secretary of State
Paul Frees as the voice of Colossus/Guardian
Sid McCoy as the Secretary of Defense
James Hong as Dr. Chin
Article sources include screenshots from the film, Imdb, wikipedia, youtube and my own recollections