I've read a few reviews for it and the two biggest complaints appear to be that most of the dialogue seems very forced and stiff (a writing flaw, not an acting flaw) and that the entire movie just seems like a mishmash of other people's work. I might go see it, but I don't plan on it. I was marginally entertained by The 6th Sense, I never saw all of Unbreakable (but have heard awful things about it) and I honestly did not like Signs. My opinion of M. Night Shyamalan is that he creates visually interesting but boring-ass movies.
that there were no monsters and that the elders were trying to keep them from wandering out because they were in the modern day and living in a wildlife preserve