A refreshing horror movie that deserved its success:

Rating: 7/10 (29 May 2010)

I would have given Paranormal Activity a slightly higher score, but for two reasons:
1. I didn't get to watch it in the conditions that are best for a horror movie.
and...
2. The movie was spoiled for me long before I got to see it. Very lame.
Despite those two things, I ended up liking Paranormal Activity a bunch. The idea and execution were very well done, and going with two unknown actors really added to the realism of the project. If any of the events Katie and Micah experienced ever happened to me in real life, I'd be terrified, and I thought they did a pretty convincing job of appearing as confused and freaked out as I would have been.
This kind of horror won't work for everyone, as it relies a lot on tension and a sense of immersion. If you can't put yourself in the place of the two main characters, then Paranormal Activity won't do much for you. But if you're brave enough to watch it at night and alone, there's a good chance that your imagination will make the rest of the night...interesting, for you.