At the time I'm rating this movie there was only one review very unfortunately rating this interresting story only one star because it doesn't depict real science. Once again I find myself correcting that kind of mistake. It's not supposed to be real science. It's fantasy. It's entertainment. It's a movie, not a scientific documentary. I'm a self proclaimed scientist too. I'm an amateur astronomer. I realize that the sun, once it exhausts it's hydrogen supply and fusion shuts down, the sun would actually become a red giant star, initially swallowing the earth. Our experience would be intense heat, not the darkness and cold shown here. It doesn't matter. As Isaac Asimov stated, it's alright to be scientifically astute and still enjoy things like fantasy, comedy and just plain fun. This movie was two of those things. And it was enjoyable. I found it very interresting to think that one day unexpectedly the sun would somehow develop dark areas that would intensify and people all over the world would suddenly hear on their tvs and radios that this would persist and their lives would drastically change. Of course today their radios would just be filled with right wing blather and they would never know until the lights went out! But I knew that this picture had to be much, much better than one star with Kyra Sedgwick and Tim Daly in it. Actually all these actors were great, I just hadn't heard of the others. It's more about family drama than that science stuff anyway. And it was great. Glad I ordered it!