Well, I think the movie makes a point about global warming playing a part in causing the cataclysm. The movie is put out by Fox, and Fox is a conservative network, so they are taking some criticism.
My husband wants to see it, but those kinds of special effects really bother me since I have an abnormal fear of water, so I'm not sure what we'll do. We watched the 10 minute thing on Fox the other night.
He read some stuff that said that some of the science is accurate, although the things in the movie happen much too quickly and it would take a long time for this to occur. According to that book A Short History of Nearly Everything the planet is still in an ice age, but we are currently in an interglacial period, and this one has lasted longer than most other ones, so we could be poised for a plunge back into coldness. I had never heard that before, and I'm sure there are critics of that thought, but I still thought it was interesting.