OpenAI’s video generation tool, Sora, can create high-definition clips of just about anything you could ask for — a breakthrough in artificial intelligence expected to transform the entertainment industry.But whose data OpenAI used to create its groundbreaking system is a mystery.With ChatGPT, OpenAI helped popularize the now-standard industry practice of building more capable AI tools by scraping vast quantities of text from the web without consent.With Sora, launched in December, OpenAI staff ...