I think the 2002 movie The Time Machine has some good nitpicks to nitpick on. For example, a 20 megaton explosion is far too small to fracture the moon. It's a lot like Space: 1999 where they have a massive nuclear explosion blowing the moon out of orbit. But at least in Space: 1999 they explain that impossiblity through something called the Mysterious Unknown Force (or something like it). And of course over 800,000 year later, the moon is still fractured. You know that in real life, a fractured moon would reintegrate itself due to the combined gravitational pull of the various fragments. Gravity is, of course,. the main force that holds the moon (and other celestial objects) together. More nitpicks coming soon.