The Day The Earth Stood Still, is it too late for peace on our planet?

I’m not a fan of Sci-Fi movies, but this one seems to be very interesting, The Day The Earth Stood Still, opening on 12 December 2008. The movie is about a group of aliens that land on earth, they send a clear message to human beings, either you stop fighting each other and live in peace, or we’ll destroy you, personally I believe we really need this to happen for real.