Casting 
Kareena Kapoor plays the female lead alongside Shah Rukh Khan in the film whilst Arjun Rampal will be seen as the villain. During an appearance on the chat show Friday Night with Jonathan Ross, Khan stated that Jackie Chan was "approached for a role in the film". Khan had reportedly sent Chan the detailed script of the film, along with the action sequences and a brief synopsis of his character; it was later confirmed that Chan would not be part of the project. In July 2010, Khan announced that Chinese-American actor Tom Wu would be part of the film.
Kareena Kapoor plays the female lead alongside Shah Rukh Khan in the film whilst Arjun Rampal will be seen as the villain. During an appearance on the chat show Friday Night with Jonathan Ross, Khan stated that Jackie Chan was "approached for a role in the film". Khan had reportedly sent Chan the detailed script of the film, along with the action sequences and a brief synopsis of his character; it was later confirmed that Chan would not be part of the project. In July 2010, Khan announced that Chinese-American actor Tom Wu would be part of the film.
