INDIA, Jan. 20 -- Filmmaker Karan Johar says his 2001 movie "Kabhi Khushi Kabhie Gham" ("K3G") is the biggest slap in his face and his biggest reality check. "I thought that I'm making the biggest film in Hindi cinema since 'Mughal-e-Azam' until Aamir Khan's 'Lagaan' and Farhan Akhtar's 'Dil Chahta hai'," Karan said. His main aim was to have a great star cast. "I made the same film as 'Kuch Kuch Hota Hai', that's what 'K3G' was," said the director, adding: "I took the storyline of 'Kabhi Kabhie' and the family values of 'Hum Aapke Hain Koun..!' and made this mush of a film." "'K3G' is the single biggest slap in my face and my biggest reality check," he said. "Kabhi Khushi Kabhie Gham" is a family drama. The film stars Amitabh Bachchan, Jaya...