Terminator 3
Showed the simple flaw in the "pull the plug" scenario. Once your AI is able to access the internet, all it has to do is hack servers around the planet and distribute backup copies of itself and you can never pull the plug.
Hopefully it turns out that general purpose digital computers are unable to run the AI, instead you need some sort of special computer (i.e. quantum computer or whatever) that costs a lot for a model able to handle a human equivalent AI. That will serve as a limit on its movement and allow humans some measure of control. If it can run on typical PC, even if only at 1/1000th of human level thought speed, it will eventually escape so we better hope it likes us! :)
Biting the hand that feeds IT
