In Ridley Scott‘s dystopian thriller “The Dog Stars,” mechanic and pilot Hig (Jacob Elordi) spends much of the movie trying to reach Grand Junction, where he hopes to find some semblance of civilization in the barren world he lives in. As Hig gets closer to his goal, his — and the audience’s — sense of anticipation intensifies, to the point that Scott knew he had to come up with a great payoff. The only problem: that payoff wasn’t working for hi…