Underworld tells the story of a centuries old war between vampires and werewolves. It has tons of action and effects but feels like it could have been shortened a bit. Also, with Underworld, the more you think about it, the more you find to question. It's fun while it's going on, but doesn't hold up under examination. I wouldn't recommend it to everyone, yet if you like this sort of thing, then it's probably the sort of thing that you'll like. ; )
On another note, the trailer for the new Texas Chainsaw Massacre played before Underworld. I haven't seen the orginal in years [and didn't really care for it when I saw it], but this remake looks interesting... As does Gothica with Halle Berry [both of which also fit our continuing horro theme].
"Underworld" rates a C