Says Karan, "Shibani and I met the couple. They were gracious enough to meet us in London. And that couple's relationship became the basis of Rizwan and Mandira's relationship in My Name Is Khan. At its core level this film is a love story."
Continues Karan, "My writer Shibani Bhatija researched extensively on various aspects of an autistic disorder and contacted the various National Autistic Centers. Shibani and I personally met a lot of autistic people, took notes and went on youtube. Then Shahrukh did his own research."
Karan admits this has been the most difficult film of his career. "It has taken its toll on me and Shahrukh. It's true, Shahrukh remained in character as Rizwan Khan even at home. At home in his body language he's always Rizwan. I see him doing it all the time. I don't think he has got out of it. Even when he's with his children at home."
Karan shot down the theory that Shahrukh's disorder is inspired from Tom Hanks in Forrest Gump. "It's not Tom Hanks in Forrest Gump at all. That was a totally different strain of autism. It's nearer to Dustin Hoffman in Rain Man, though still very different. It's what we call high-functional autism. You can have a regular life, be married, and have children. But the syndrome does convey a fair amount of quirks and eccentricities. But his character is not essentially neuro-typical. The film has made me understand human behaviour and how to be compassionate and humane."
The film has sapped Karan's energy. He needs to take a break. "I need to get away for a month. I don't think it will happen. But no harm in dreaming."
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