the theater i was in roared with laughter at this movie. this is not the consequence of a well made horror film, but a failed one.
I don't know what kind of people you're theater was filled with. In mine people were jumping at almost every scaring part, someone next to me nearly had a heart attack when someone else's popcorn fell.
Judging from my Theater and my own a Opinion this is one of the best Horror films made in the last year or so.