getting good until the monsters show up

Rating: 2/10 (30 July 2012)

This movie starts off boring, gets good, goes sour, gets worse, ends good. I give it an F+.
I give it a plus because it's rated R, has lots of blood, and the acting is decent.
Now I'll tell you why it gets an F. There are monsters in this movie that can leap, run, and climb walls at super human speed. So they must be pretty strong, right? Now we have an all-female cast of crybabies who can BARELY rock climb. What happens when they square off with the monsters? Duh. They harness their girl power and stomp the monsters into a bloody pulp.
There's a scene in this movie when a woman and a monster get into a slap fight. Seriously. Slapping each others' hands like patty cake. You go, girl. It's eventually revealed that the monsters are blind. They use their ears "like a bat." Oh, so they use echo location? Well that means you can be as quiet as you want and they'll still find you, right? Nope!
They can't hear the girls breath. They can't hear their racing heart beats. Nothing. But somehow they can maneuver the caves in pure darkness.
Also, the movie has no humor and no nudity. Unless you count the monsters. The main character, Sarah, has no depth. I know she's a victim who lost her fam in a car accident. In the end she learns to stand up and fight. but that's it. She has no personality. Who cares if she lives or not? Thank goodness I didn't pay money to see this movie.