What was the name of that movie where a group of girls goes spelunking and encounter these awful looking "things" and all kinds of human skeletons that were killed and ate by the things ? One girl was lying on the cave floor at the end and the audience never knew if she dreamed it all or was still unconscious in the cave with "things encircling her ?

I'll bet they will run into some of "them" in their dig toward the center (which is hollow, don't you know?)

Anyone know the name of that movie... it was scary,bad.