Usually the twist in an M. Night Shyamalan movie answers questions, but in this movie it only creates more. All characters are killed off unceremoniously leaving an ending with minimal impact to the story world.
Even though I wished it ended differently š(TM)
I also think that people want a super action super hero movie, which this movie is not. You actually have to pay close attention to what is happening, since its not really a action movie. I liked this movie though, and if you want a super hero action movie, this movie may not be fore you. Though if you want to watch a movie that makes you think, and have a good time this is for you.