Aamir Khan, who is busy promoting 'Secret Superstar' these days, will complete 30 years in the film industry. Aamir says that he owes his success to his films and films only. Aamir also adds that an actor can never become bigger than his films. This is a time in the film industry across the globe where every star either wants to write an autobiography or has either written one. Does Mr. Perfectionist of Bollywood not want to pen down his autobiography?