Now I don't want to give too much away because the best part of the movie is that it is surprising (especially the ending!) and you don't really know what to expect. I will say, however, that what they seem to catch on film at night will certainly creep you out if not totally terrify you. I definitely jumped a few times and I heard some screams in the theater. I think there has been a bit too much hype surrounding this movie... and it is certainly not worthy of being hailed the "scariest movie ever," but it is scary, it is fun, and it was something new and interesting. It is not gory or an example of torture porn, but just some good pine-chilling fun.
The tagline of the movie is "Don't see it alone," and I could not agree more. So grab some friends and check out Paranormal Activity!