Kangana Ranaut, who'll be sharing screen space with Imran Khan in Nikhil Advani's upcoming film Katti Batti, says that the film is very different from the usual love stories that are made in Bollywood. At a recent event, she said, ''We will start shooting for the film in September. It's a marvellous love story and it's very different from the usual Bollywood love stories. Love has been depicted in a very different way in Katti Batti. The idea and the philosophy of that film is very good.'' Kangana will be next seen in Karan Johar's Ungli.