Guest Author - Lisa Shea

Underworld dealt in a world of vampire and werewolves. Here are a few mistakes they made in the movie!

While I love mercury, that is not what silver nitrate looks like. It is, in fact, clear.

It's always amusing how they handle naked bodies in these films. The werewolf is supposed to be naked, but when he walks in with a body over his shoulder, you can see he's wearing little black undies.

Selene must be extremely heavy! When she jumps onto the train tracks, the ground "bends" under her weight.

When Victor is resurrected, there is a reversed street sign. Maybe the world is suddenly backwards because of this event.

If you've spotted other errors, be sure to post them in our forums!