The jury's back in on the PR hacks who sow confusion and manufacture ambiguity in the public debate over climate change: they're guilty of crimes against not only science and their fellow citizens but humanity itself. Adapted from the eponymous book by Naomi Oreskes and Erik M. Conway, this documentary helpfully connects our current wave of antiscientific bullshit with earlier campaigns that cynically and purposely misled the public about the dangers of tobacco, pesticides, and various pharmaceutical drugs. In fact, some of the same men who carried out the tobacco companies' decades-long snow job are now busy muddying the waters on global warming and its causes. So if you liked heart disease and lung cancer, you'll love rising sea levels. Robert Kenner directed.