Vegan actor Joaquin Phoenix took a bold stance against the menu served at Vanity Fair’s party after the Oscars this Sunday, which primarily consisted of beef-based In-N-Out burgers. When a waiter offered him a burger, Phoenix—who was at the party with his fiancée (and fellow vegan) Rooney Mara—held up a card that read: “Choose vegan. It isn’t a fad, it’s the future,” supplied by animal-rescue organization Farm Sanctuary. Phoenix and Mara did, however, have burgers after the Oscars—where Phoenix delivered a historic, animal-rights centric, acceptance speech for his best actor award—at Monty’s Good Burger, an all-vegan burger restaurant in Los Angeles. 

Starting with the Golden Globes last month, most awards ceremonies have chosen to adopt a plant-based menu to take a stance against the climate crisis. And while the menu at the Governors Ball, the official Oscars after-party, was not vegan, chef Wolfgang Puck increased plant-based offerings to 70 percent of the menu. Sweeping the best actor category at all major awards shows this year—including the British Academy of Film and Television Arts (BAFTA) awards—Phoenix has used his time in the spotlight to raise awareness about the plight of animals in the global food system and the devastating effects of animal agriculture on the environment, urging his fellow Hollywood luminaries and Joker fans to take action by going vegan.