While the world’s most glamorous film festival rages on with red carpets, standing ovations, and desperate distribution deals, behind closed doors, a monstrous new movie is stirring. And it has J.J.

Joe Berlinger, the groundbreaking U.S. director known for HBO’s Emmy-winning true crime docuseries “Paradise Lost,” is set to direct a feature film that will reimagine the cold war thriller “Fail-Safe ...