I really didn't like it.
The first Underworld pissed me off when I saw it in the theatre as well. The concept was near and dear enough to my angsty little heart that the execution just felt wrong.
Ended up buying it on DVD and grew to actually like it.
Sequel Fuck Ups - possible spoilers ahead!
- Action from start to finish. One of the strengths of the first movie was that it had a decent plot to dribble out.
- Removing the werewolves as sympathetic characters. I suspect some sort of attempt at dodging a lawsuit from White Wolf?
- Weak villain. Good actor, cool effects, use him all wrong.
- No character development for Michael. Look like dude from Creed > do something stupid/romantic > tear shirt off and turn black > repeat.
- Selene should've kept the sword from the first flick.
- Homeboy on the boat (Derek Jacobi) - wow, lame.
- Homeboy locked up - wow, lame.
It did have some really amazing effects shots in the first couple minutes of the movie. The sequence on the truck w/ batdude flying around was great. The jaw rippage and head choppage was nice.
...and while I consider myself to be a boring old-fashioned gentleman...hot damn was Kate Beckinsale born to run around in a rubber suit. GOD DAMN, I say.