Belief that my films will be superhits makes me work 18 hrs a day: SRK

Actor Shah Rukh Khan said he has faith that all his upcoming films will be successful at the box office. "I'd like to explain the lack of arrogance in this statement...That is the belief that makes me, at the age of 57, go do stunts, jump, work 18 hours a day," he added. SRK will next feature in 'Pathaan'.