Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-24556360-20140226075948

So upon rewatching the trailer I caught something very small and just had to look online to see if anyone else did. Surely enough I wasn't the only one to notice it.

In the preview, the segment where Isaac is looking in the mirror and Allison is in bed and says something along the lines of "What are you doing over there?," I noticed something very odd which is Isaac's reflection in the mirror moves its head, yet Isaac actually does not..

Anyone have any ideas, particularly about what it could mean? Visual can be found here . 