Karan Johar has revealed that Shah Rukh Khan "finds it very difficult to laugh naturally on-screen". "Ask him to laugh in a scene and he can't do it," Johar added. Talking about a scene in 'Kuch Kuch Hota Hai' in which Khan had to laugh, he further said, "We had many takes...It [got] so exhausting that he laughed...out of exhaustion."