How ‘Avengers: Infinity’ War turned Josh Brolin into an eight-foot purple madman

While Brolin’s performance drives the character, none of those moments would have been possible without the special effects wizardry of Digital Domain. The visual effects company, founded by James Cameron and the late Stan Winston 25 years ago, was tasked with bringing Thanos to life, and on the biggest stage possible. I jumped on the phone with visual effects supervisor Kelly Port to talk about the scope of Infinity War, the company’s complex motion-capture system, and how machine learning served a crucial role in turning Josh Brolin into a mad Titan.