I did not like this movie.
This was a movie that someone took the robot, and military making bad calls and gutted the rest of the old story.
Then there was the whole idea that the alien can and will commit genocide because of some thinly veiled military objective.
Here how the movie put it.
The earth is one of a few planets that can support "complex life" and the humans are destroying it and them selves, so we (the alien federation represented by Klaatu) can kill every last man, woman, and child because we will do better. The cover story we will give the humans is this. You are not taking care of your ecology so we are going to kill you. I think the Vogons had a better logic and morals.
although this movie was not a total wast of my time, I did get to see the trailers for Wolverine, and Star Trek.