Morpheus describes the end of the world to Neo and shows him what the "real world" is actually like. He mentions that AI took over and humans scorched the sky in response to prevent them from generating energy from the sun. However, the AI started to harvest the bioelecricity from fetuses as an energy source. Important to note is that his claims on the amount of energy and heat that humans generate are not accurate.
In an attempt to harm the Road Runner, Wile E. Coyote rolls a boulder in his path. His attempt is unsuccessful and quickly backfires in an unrealistic manner. This clip illustrates a violation of the conservation of energy.