Will Smith has hit out at actors who refuse to promote their movies around the world, insisting it's the only way to become a global superstar. The I Am Legend star is amazed that only a handful of Hollywood celebrities bother to visit South America, Europe and the Far East to promote films - because those that choose not to are missing huge opportunities to become international stars. He says, "I've had conversations bordering on arguments with a lot of actors (about this). "I ask, 'How many premieres of your movie have you been to?' And they say, 'Oh, one in L.A., one in New York.' Well, what about London? What about Berlin? Tokyo? Seoul? You have to go.' "It's the only way that somebody gets to be a movie star in the way that you look at Tom Hanks, Tom Cruise and myself."