Kareena Kapoor was the first choice for Karan Johar and Ekta Kapoor’s thriller to be directed by a greenhorn. But one hears the reigning diva has turned down this offer. While an insider says, “Kareena was not entirely convinced about the film. While she is extremely close to Karan, it is said she wants to do a magnum-opus directed by him.” The Karan-Ekta film is likely to start in December 2012 and it will have Emraan Hashmi in the lead. If Kareena had agreed to be a part of it, it would have been her first film with the serial kisser. Kareena is down with a throat infection and fever. She messaged, “The ‘Heroine’ schedule has been very gruelling. It has taken its toll on me. Too much crying and shouting in the film.” She admitted that she is not doing the Karan-Ekta thriller. “I said ‘no’ last week,” she replied.