Overall, the trailer was good, well, for a horror movie. Seemed a bit too predictable for my taste. The giggling when the lights went out didn't really sound like it could come from either of them, seems like it should be a bit of an older woman voice laughing. You can never really go wrong with eerie music though xD. Didn't seem very original though, I've seen way too many times when theres some girl turned away with her hair covering her face crying or looking innocent or whatever that turns out to be evil. The lights going out and little girl giggling is too common. Really wherever the scene is, it seems like theres going to be someone alone in a dark ominous looking area and they really shouldn't be there to begin with. That's me just being a critic though, it really was pretty good, I just thought it was predictable. Good job.