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FILE - This April 22, 2015 file photo actor Arnold Schwarzenegger participates in AOL's BUILD Speaker Series in New York. A California appeals court has upheld former Gov. Schwarzenegger’s decision to dramatically reduce the manslaughter sentence of a political ally’s son. The 3rd District Court of Appeal in Sacramento ruled Tuesday, June 2, 2015 that Schwarzenegger’s actions may be seen as deserving of censure and grossly unjust. But the judges say the governor didn’t violate the state constitution by failing to notify the victim’s family beforehand. (Photo by Evan Agostini/Invision/AP, File) Image Credit: Evan Agostini/Invision/AP

More than two decades since the first, gut-crunching Terminator movie, James Cameron and Arnold Schwarzenegger have collaborated again on a campaign encouraging people to cut down on the amount of meat they eat.

Spearheaded by WildAid, the drive has American and Chinese audiences in its crosshairs, and endorses efforts by the latter government to reduce the population’s meat consumption by 50 per cent.

“You have to respect that,” says Cameron in backstage footage from the shoot. “That’s a leadership position.” The director, whose off-screen ecological activism has been detected in the plots of films such as Avatar, said he’d been stirred into action after clocking his own hypocrisy.

“How can I call myself an environmentalist when I’m contributing to environmental degradation by what I eat?”

Speaking alongside Cameron, Schwarzenegger reports health benefits of cutting down his meat and dairy intake on the advice of doctors. “I’m slowly getting off meat,” he says, “and I tell you: I feel fantastic.”

The video, which is part of a wider strategy including billboards and online pledges, features Schwarzenegger staggering through a ravaged landscape presumably destroyed in part by the carbon emissions of the livestock industry.

“Less meat, less heat, more life,” concludes the actor in the film, who also states that the notion meat is needed for muscle strength is incorrect.

The campaign makes curious contrast with a video released earlier this week, fronted by Matt Damon, Joaquin Phoenix and Rooney Mara, lobbying for an end to the torture and slaughter of some 10,000 dogs in the far east as part of an annual food festival.