Very interesting. You have to pay attention to each person and know their history. If you watch long enough you can figure out who will make it out. Intriguing and a little scary but good. Enjoyed it tremendously.

It was a cool movie.

I enjoyed the cast especially, the puzzles, the concept...I wanted just a little more plot or character development, just a little more depth...although, I am happy that they've left the door open for a sequel.

Overall great movie. Loved it and would definitely see it again.