When Dimitrius Schuster-Koloamatangi first auditioned for “ Predator: Badlands ,” he didn’t know he was trying out to play the first of the titular aliens to be the hero, instead of a villain, in the 38-year-old franchise. In fact, he didn’t know he was auditioning for a “Predator” film at all. He wasn’t even provided with any written lines. “All it said was ‘a creature,’” Schuster-Koloamatangi says. “The little character brief just said, ‘It’s all up to your interpretation.’” The 24-year-old