4. Convenient Weaknesses
Touchstone PicturesMore often than not - particularly in the cases of aliens - movie villains always end up having an extremely convenient weakness. M. Night Shyamalan's Signs is the perfect example - although, granted, that is kind of one of the main points of the movie. After aliens arrived on Earth, they invaded people's homes - including that of Mel Gibson's Reverend Graham Hess - only to find that the half-drank glasses of water that his daughter Bo had been leaving around were actually housing the weapon that would defeat them. That's right, a bunch of aliens - who had the intellectual power to build crafts capable of travelling light years across space in order to reach Earth - were vulnerable to the very substance that covers 71% of that planet's surface and indeed falls from that planet's sky. And then look at Superman IV: The Quest for Peace. This terrible movie brought us the equally terrible villain Nuclear Man who, for no real reason, was powered solely by the sun. Consequently, any time he wasn't fully exposed to direct sunlight, he was pretty much useless. What made this particular weakness even more convenient was the fact the Superman himself is also powered by the sun - and yet the same weakness didn't affect him as soon as he was taken out of it. Far too many weaknesses are just too convenient to be taken seriously - and that was just a couple of examples