Shah Rukh Khan gets candid in an interview for the promotion of his film Zero. He said that for any film, he needs to be happy in the film's zone and he also needs the crew to be happy and not doing a film as an obligation. The superstar said that it's a misnomer that he's a romantic hero but he's done very few romantic films. He said that he doesn't need to believe in what he's doing but he has to make the audience believe in it.