This movie reminded me of Goyer's last movie, The Invisible, in that I nearly forgot what I'd just seen about five minutes after it ended. I only recall vague impressions of shallow, sarcastic rich kids getting screwed by supernatural forces.
Hope this isn't un-germane, as I haven't seen the movie, but something has been bugging me about it. Based on what I've seen in the advertisements/trailers, it appears the main character is aged somewhere in her late teens. The unborn kid, who was to have been her twin (right?), that terrorizes her looks to be about 8 years old. For me, this does not compute. Seems if the kid was never born, he oughta either look like an embryo, or look the same age as his twin sis. Am I missing something here?