I didn't see the movie, but I think it would be interesting to see it, for entertainment if nothing else. I can imagine it was not too different than Tom Brokaw's special which seemed to me fairly lean on facts and heavy on hype.
There is of course plenty of hype on both sides. I don't think anyone serious about the issue should trust the assessments of a politician or a journalist any more than a publication devoted to near-term business interests.
People who are serious about understanding the issue should take a look at credible sources such as LANL, LLNL, NANA, NOAA, NAS, WHOA, IPCC, NAS whose comments are linked in the thread "The Cylce of Global Warming"
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