Filmmaker Karan Johar won everyone's hearts with his movie 'Rocky Aur Rani Kii Prem Kahaani'. With this film, Karan made a comeback to direction after seven years. Recently, in a conversation, Karan opened up about how the idea of making 'RARKPK' came into his head. The movie stars Ranveer Singh, Alia Bhatt, Dharmendra, Jaya Bachchan and Shabana Azmi among others.?