All that being said...I seriously disliked the movie. There were too many moments where the characters seemed to forget what they were just doing. (This is a bit of a spoiler) An example: they made "boom sticks" to fight back against the wolves, even spent time sharpening the spears and burning the ends to make them stronger....then only used one and never carried the spears for protection. They were suddenly forgotten, even though they were emphasized. It was maddening to see. I was NOT alone in my frustration as I could hear many of the people around me asking some of my same questions. I also HATED the ending. I like the moments leading up to it, the set up. BUT...the actual ending. Seriously? The ENTIRE theater booed and yelled about it. There was even discussion in the ladies room that we could spend a few minutes with toilet paper rolls and come up with a better ending.
Overall, it wasn't the worst movie I've seen...but I won't watch it again.