Khan does method acting for autistic role

Karan Johar has revealed that Shah Rukh Khan stayed in character even at home for his role as an autistic man in the director's latest film My Name is Khan.

Khan plays a man who unwittingly gets arrested in America because of his surname, an incident mirrored by the actor's recent experience of being detained at Newark Airport.

Johar described Khan's character as similar to that of Dustin Hoffman in Rain Man.

The Kabhi Alvida Naa Kehna director also claimed that My Name is Khan has been the most difficult film of his career so far.

"It has taken its toll on me and Shah Rukh," he said. "It’s true Shah Rukh 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."