Ben Affleck talks about building InterPositive, the AI video startup he sold to Netflix for ~$590m. Says when he first saw AI text-to-video, he told Matt Damon: “Dude, we have to do as many movies in the next few years as we can. We’re finished.” He later felt the AI video models didn’t fully understand filmmaking (they had raw video knowledge but didn’t convey “cinematic language”). Affleck raised money and his team (16 employees total) spent 8 months with various cameras and equipment…