I didn't compare anyone to holocaust deniers and creationists, I compared the rhetorics. It was an objective review of the points and accusations made against climate research in the "documentary" in question.
To be a "rational skeptic" is not the same as more or less uncritically swallow conspiracy claims from a film that denies scientific consensus.
Anyone that has some insight in the issue can identify this "dispute" as an ideological one rather than a scientific. Is it merely a coincidence that those who are most eager to be skeptical about anthropogenic global warming are also proponents of the free market and capitalism? I don't think so. We see this trend especially among randian objectivists, libertarians and anarchists. I mean come on, people in general are not dummies. Surely they are not blind to see informal argumentation?
1. If AGW is true, capitalism is in danger
2. The only way to save capitalism is to deny AGW
3. Capitalism should be saved
4. Therefor AGW must be denied
I personally think that the only way to deal with AGW is by REALLY implementing the free market and capitalism. Just as with the current financial crisis I would argue that climate change becomes a way more dangerous and problematic issue when taking into account regulations through national and supernational interventions. So I would reconsider switching the tactics if I were you before giving the lefties a master opportunity to take the high ground backed by the scientific community and hard facts.
Perhaps we should go back to the basics?
1. The globe has been warming up steadily since the industrial revolution (not disputed in film)*
2. Greenhouse gases do increase trapping of IR-radiation in the atmosphere and therefor raise the temperature (not disputed in film)**
3. We are vastly increasing the proportion of greenhouse gases in the atmosphere and have been doing so significally since the industrial revolution*** (not disputed i film)
4. _______________________________
Fill in the blank. 
*http://data.giss.nasa.gov/gistemp/graphs/Fig.A2.lrg.gif
**http://www.sciencemag.org/cgi/content/abstract/302/5651/1719
http://wiki.nsdl.org/index.php/PALE:ClassicArticles/GlobalWarming
http://gaw.kishou.go.jp/wdcgg/gas.html
***http://cdiac.ornl.gov/ftp/ndp006/ndp006.pdf
http://www.pnas.org/content/104/24/10288.full.pdf
http://epa.gov/climatechange/emissions/usinventoryreport.html
http://www.ipcc.ch/pdf/assessment-report/ar4/wg1/ar4-wg1-chapter7.pdf
http://www.fao.org/docrep/010/a0701e/a0701e00.htm
etc.
"When liberty comes with hands dabbled in blood it is hard to shake hands with her."
- Oscar Wilde