I give this movie 0 stars. It's the worst, literally, worst movie I've ever seen. Even the all star cast could not rescue it. Trying to make satire of the end of the world is a lofty goal. But it mostly just fell flat. It was like watching a Saturday Night Live schtich of the coneheads without Akryod or Curtain. The only thing I find truly ironic and humorous about this movie is the odd notion that a comet hurling toward earth has anything to do with climate change. But that's Hollywood for you. Always shamlessly plugging their pet projects.