You must be a Hollywood Leftist if you can believe that we are less important than microbes, but there is no Supreme Being or Almighty, except as a comic relief "Man Behind The Curtain."
I didn't start watching the movie with high expectations, and my (mediocre) expectations were met. I generally expect movies to entertain me. (If I want to be educated or enlightened, I will turn to books.)
The predictability factor took most of the enjoyment out of it for me. But I will say again, Dakota Fanning did a great job in that film.