By now we all know that Arjun Kapoor and Kareena Kapoor Khan will come together for the first time for R Balki?s next. But what we did not know was Kareena replaced Anushka Sharma in this romcom. Sources close to the film sets suggest that the filmmaker wrote the film keeping the PK actress in mind. A source was quoted saying,?Balki was first planning the film with Anushka, so it came as a surprise when it was announced that Kareena had been cast in the film.?