American DJ and producer Diplo (Thomas Wesley Pentz), was among a number of celebrities who attended the Los Angeles premiere of the documentary “The Game Changers,” on Wednesday. He shared clips of the film on his Instagram Stories, telling his fans to “be vegan.”

“Game Changers” is the highly-anticipated documentary executive produced by director James Cameron and directed by Academy Award-winner Louis Psihoyos. Executive producers also include Formula 1 race car driver Lewis Hamilton, action stars Arnold Schwarzenegger and Jackie Chan, and tennis legend Novak Djokovic.

The film explores the connection between diet and athletic performance. Former elite Special Forces combatives trainer James Wilks anchors the film as he travels the world meeting with top athletes, trainers, and physicians to discuss how performance has changed when giving up meat.

The Meat Myth

Former bodybuilder, action star, and California governor, Schwarzenegger discusses the “myths” around meat and athletic performance.

“There’s no one that can relate better to that than I do because I have lived in that world. ‘Steak is for men,’” he says in the film’s trailer. “They show these commercials — burgers, George Foreman Grill, big sandwiches and all that stuff.”

“This is great, great marketing by the meat industry,” Schwarzenegger continues. “Selling the idea that real men eat meat. But you’ve got to understand: that’s marketing. That’s not based on reality.”

Pentz shared clips from a segment that highlights the benefits to erectile function on a plant-based diet. Athletes appear with a physician who monitored the strength of their erections while asleep, pointing to notable improvements when abstaining from meat.

Cameron pointed out the connection between clogged arteries and erectile disfunction last year. He and his wife Suzy Amis Cameron adopted a vegan diet in 2011.

“I’d love to put Viagra out of business, just by spreading the word on plant-based eating,” Cameron told The Star last April.

NFL legend Tony Gonzalez also attended the premiere, and credit a plant-based diet for his performance.

“I hope people can see that the old neanderthal way of thinking that you just have to stuff your plate with meat is the only way you can perform out there. It’s not true. The science is there,” he told the Hollywood Reporter. “It’s been there for a long time. I made that change about year 10 in my career and I saw the benefits skyrocket. Clarity of mind, endurance, sleeping better, everything. It gave me an extra seven years to go out there and play the game I love.”

“The Game Changers” comes to theaters for one night only on September 16th.