So much hate for such a brilliant movie. The concept itself is enough to make it a 5 out of 5 must watch horror thriller sci-fi and there are even some good comedy scenes. I know some people might not be comfortable with the ufo being an animal but the way they have written it is brilliant. How could the ufo fly without fuel and if there's any kind of motion it should push off the clouds, but if it's a balloon everything seems right. Being a wild sci-fi concept yet tries to be more logical than transparent LCD screens in every other sci-fi movies these days. Movies these days are getting worse and worse because people don't support such fresh new content.