I gave a presentation on the science of disaster movies for my geology course this week. Among the inaccuracies cited were 2012's ludicrously slow pyroclastic flow, the incorrect usage of low-silica lava in Dante's Peak, and the entire plot of The Day After Tomorrow. Still, even among this stiff competition, one film managed to stand out. It is a film about American scientists using a pulse weapon to send earthquakes at our enemies, resulting in the magnetic field shutting down. A group of scientists must then use an experimental substance called unobtainium to drill through the magma and detonate nuclear bombs to get the core spinning again. Along the way, they encounter enormous diamonds, geodes, and innumerable other violations of the laws of thermodynamics.
I can't stress enough how wonderful of a viewing experience The Core is, but if you haven't seen it yet, I recommend it with no reservations. It truly is an experience like no other.