It was the television programme that set out to show that most of the world's climate scientists are misleading us when they say humanity is heating up the Earth by emitting carbon dioxide. And The Great Global Warming Swindle, screened by Channel 4 on Thursday night, convinced many viewers that it is indeed untrue that the gas is to blame for global warming.
But now the programme - and the channel - is facing a serious challenge to its own credibility after one of the most distinguished scientists that it featured said his views had been "grossly distorted" by the film, and made it clear that he believed human pollution did warm the climate.
Professor Carl Wunsch, professor of physical oceanography at the Massachusetts Institute of Technology said he had been "completely misrepresented" by the programme, and "totally misled" on its content. He added that he is considering making a formal complaint.
Sign these guys up with Fox News, stat!