Filmmaker Karan Johar says if he ever makes "Kuch Kuch Hota Hai 2", he would cast actors Ranbir Kapoor, Alia Bhatt and Janhvi Kapoor in it. The 1998 film "Kuch Kuch Hota Hai", his directorial debut, had featured Shah Rukh Khan, Kajol and Rani Mukerji.
