Just went to see it today, still deciding what I think. I loved the flash backs where it slowly revealed more. (felt like Lost meets Cloverfield - the fact that Matthew Fox is in it just ties it all up

) I think I was stuck in a immature audience they quickly started moaning and complaining about each new vantage. Even though each Vantage was extremely different from the previous.
I think near the end it starts to loose itself. I especially didn't like Dennis Quaid's character the invincible secret agent.