MUMBAI - Actor Imran Khan is having a "positive experience" filming "Katti Batti", thanks to his "wonderful co-star" Kangana Ranaut and "great director" Nikhil Advani. "I am having so much fun on this film ('Katti Batti') because I am working with Kangana (Ranaut) for the first time and she is just so wonderful to work with," Imran said here Thursday at Filmfare Glamour & Style Awards red carpet.