Strong liberal undertones kinda ruined the movie for me. I was disappointed in Bullock and that she starred in this B grade, not so horror filled horror flick. The whole thing felt kind of cheezy and very unrealistic. Poor job on the details and story telling. The passage of time was badly conveyed and it was hard to connect with any of the characters. It was just a bad movie that didn't even try to make sense. In a word, shallow.