I thought more like Alien and, no, I didn't know there was a tagline somewhere along the Alien style horror. Almost had my Denny's card revoked over that idea.
I don't agree with you on the zombie bit negative1, hey first time for everything.

More evolution or missing link than living dead, but did it scare you?
Don't even try a gay cheat shot on me as I went with my nephew who's a 6'3" pool shark bar room brawler, can fix anyone car's when they come crying type of guy. When I turned to him in theatre(10:00AM Mon. showing, we had the entire theatre to ourselves, I could've smoked from a massive bong and no one would have noticed) and said, "I'm fucking scared!". He said, "I am too bitch, go find someone else to cry to."
I was disappointed with the action scenes going so fast too. I kept thinking, damn I can't tell what the F is happening on more than two action scenes. Then again, maybe it was intentional for those moments to be so quickly paced to make it more believable(sp? it's late, I've been bad this weekend, and school starts tomorrow).