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The Matrix
Much in the way of physics in the Matrix -- like dodging bullets and running up walls -- gets a pass because it's all within a massive virtual world. But in reality, our supposed robot overlords are a bit dim. Humans are a remarkably inefficient energy source. Instead of turning the human race into Duracells, the machines would probably get more energy just setting those goopy people pods on fire.
(source: movies.yahoo)
(source: movies.yahoo)