How did it all add up??? (Spoiler alert!)
Some scenes seemed totally unnecessary because they added nothing to the plot, only confused it. Like the scene where the nurses stripped naked and kissed each other. Or the little girl who kept trying to hint that she knew everything, but said nothing of value. Or the history of St. Rosemary's (did not tie in with Amy's plot.)
And if the Nick in the hospital is not the "real" Nick, as some of the other posters have said, then all the scenes where he talked to the other patients heard their screams at night and saw the nurses drinking blood and everything else would have been fake reactions as well. What???
And why is it when Amy stabbed Luke in the gut he had no reaction like he was supposed to be immortal, but when she sprayed him with steam, he screamed and collapsed?
Not to mention that the dialogue was HORRIBLE and the Amy character's bad acting didn't help. Plus, the meanness/rudeness of the police officer and the little girl's parents was not believable at all.
Overall, this movie just really sucked.