A screenshot of the PixVerse AI video generation home page showing sample clips.ScreenshotBEIJING — An Alibaba-backed startup is pushing artificial intelligence toward real-time, interactive video creation.PixVerse on Tuesday released an AI tool that allows users to control how a video unfolds while it is being generated. And just like a movie director, users can instruct characters to cry, dance or pose, with actions occurring instantly as the video continues.Real-time AI video generation can create "new b ...