This may be the perfect Cold War / technology-paranoid film. There's nothing extra, and no relief offered. I was pretty sure I knew the outcome by the time the President explained what "Colossus" was supposed to do. But that didn't make the relatively short trip to doom uninteresting. The acting is pretty good, though not spectacular, but what really makes the film is the brilliant twist on science out of control, with two computers working togeyher, like two people who meet by accident, and find themselves to be kindred spirits. The film can also be read as a backhanded argument for cooperation between the Cold War rivals, and also as an endictment of anyone's ambitions to do good in the world. The final speech by Colossus could have been written by a staunch libertarian about any modern welfare state. I disagree with the implications, but the film is good enough to make the point worth considering.