Katrina Kaif and Ranbir Kapoor are all set to star in Imtiaz Ali’s next film. While Ranbir was finalised for the leading actor long back, the hunt for the film’s leading lady came to an end with Katrina being finalised. The untitled film is being produced by Sajid Nadiadwala. The producer however refuses to divulge the news but an insider reveals that Katrina is very much a part of the film. If the news is true, this will be RK-Kats third film together, first being ‘Ajab Prem Ki Ghazab Kahani’ followed by ‘Raajneeti’. Katrina has always been keen on working with Imtiaz Ali, as in most of his films heroines have been appreciated for their work.