OpenAI’s demonstration of its video-generator tool, Sora, caused a lot of hand-wringing about potential job losses. Now a TV and movie mogul is amplifying such fears.Tyler Perry says he has halted an $800 million expansion of his Atlanta studio complex that would have added a dozen soundstages. Seeing OpenAI’s tool in action prompted the move, he said.“All of that is currently and indefinitely on hold because of Sora and what I’m seeing,” he told the Hollywood Reporter on Thursday. “I had gotten...