This movie was terrible. Right from the opening credits in which it looks like it is snowing but which is revealed to be flakes of skin being scraped off, I knew this was going to be a dud. That was just gross. I almost walked out of the theater right there! But I stayed and the rest of the movie confirmed what to me was clear in those first few minutes - this movie sucked! Ugh! For the record, my problem was not with the premise which I found fascinating but with the whole execution which I found strained all believablility...