Film thirty-three of the festival and Na Hong-jin is finally back. Hope is a Korean monster movie with the largest budget in Korean film history, one extraordinary hour of pure brawling joy, and a CGI creature design that looks like it belongs in a different decade. We talk about what the first hour gets absolutely right, where the film falls apart, and whether Michael Fassbender playing a motion-capture monster in Competition at Cannes is genius or madness.