HAHA! Yeah. The Earths core dosn't rotate. Rather it woks much like a Lava Lamp believe it or not. As the magma moves tward the crust, (because it is hot) it cools off. It then falls back down tward the true center, heating back up, and floating up again. The flows of the core have nothing to do anythign but the movment of the tectonic plates. This movie is a Zoligists nightmare.

(Zoligist being a studies of Plate Tectonics, rather than Zooligist, who studies animals, much in the same way as Biologist do.)