On Wednesday, conservative activist and controversial video sting artist James O’Keefe made an appearance in Cannes during the Film Festival with a new, secretly recorded 20-minute video that he said exposes the hypocrisy of two environmentalist documentarians and two Hollywood actors. At the end of the clip, after Josh and Rebecca Tickell, Mariel Hemingway, and Ed Begley Jr. appear to have unwittingly agreed to accept financing for an anti-fracking film from Middle East oil interests, O’Keefe claims he’s caught other allegedly altruistic actors and filmmakers in his trap, teasing a clip of a phone conversation with filmmaker Josh Fox.

But this time, O’Keefe wasn’t the only one making secret recordings. Left more than a little suspicious by years of vicious—and often surreptitious—attacks from the natural gas industry and its supporters following the premiere of his 2010 Oscar-nominated anti-fracking documentary, Gasland, and its 2012 sequel, Gasland II, Fox taped his interaction with one of O’Keefe’s minions and documented the elaborate lengths they went to entrap him.