This is a silly idea for two reasons. One: there has never been a good movie based on a video game. Two: I’m not a Gran Turismo expert, but as far as I know there is no story mode in any of the video games. With no existing protagonist or characters to draw from, the film is simply going to be a racing story with the Gran Turismo brand slapped on it. This *could* give the filmmakers the opportunity to make the next Grand Prix. But it will probably be the next Need for Speed.