Oscar winner Louis Psihoyos (The Cove) returns with another brilliantly constructed and remarkably persuasive documentary, this time examining how we fuel our bodies. In an uncommon approach, Psihoyos avoids ethical and environmental arguments for adopting a plant-based diet. Instead, Game Changers focuses on an elite cadre of mostly male athletes to explode the myth that animal protein is required for maximum physical strength, performance and, ahem, sexual prowess. Scientists and experts join Olympians, UFC fighters, weightlifters and ultramarathoners whose switch to vegetarian and vegan diets has achieved dramatically positive results. The evidence that the single most important thing each of us can do to save the planet is to stop consuming animals is secondary to this clever appeal to vanity, virility and better health.