Greg and Pam are sitting on the couch, talking w/ her parents. (This is right after Greg gives them the gift.) Anyway, watch Greg's drink as they talk about "nanny cam", it has a cherry in it. It takes a while, but keep watching it. All of a sudden it's in the up left corner of the glass! How can a cherry move with out the glass being moved? (This happens right before Deniro says, "No, the answer is you cannot.")