Sanctum

I wasn't sure what to expect with this one; wasn't sure if I was going to go to it.  So my expectations were low, and yes, I was surprised how much I liked it.  Very suspenseful, a little gruesome in just a couple spots.  The last half was better then the first, the first had a few slow spots.  There were a lot of scenes of people floating in underwater caves, and yes it was pretty, but not all that interesting.  The action in the second half made up for it.  All in all, I think you'd enjoy it.  I give it 2 and a half stars.