Dwayne “The Rock” Johnson is one of the most recognizable people on the planet, whose appearance, including his monumental physique and iconic Polynesian tattoos, is inseparable from his brand. That is why the task facing prosthetic makeup guru Kazu Hiro was monumental: to make The Rock disappear, giving way to legendary MMA fighter Mark Kerr in Benny Safdie’s biopic “The Smashing Machine.”