Vidya Balan certainly leaves a smile on faces wherever she goes. But guess what the crew of her upcoming film 'Kahaani' has named her. Vidya's crew in the film is really fond of the actor and call her Sunshine. Vidya has recently finished shooting for the Kolkata schedule of the film and when she was flying back to Mumbai to promote 'No One Killed Jessica', it rained quite heavily in Kolkata and seeing that everyone said that its raining because our sunshine has left. Now that was quite cute. Sujoy Ghosh's 'Kahaani' revolves around Vidya as the central character and Sujoy is quite sure that he could have cast someone better. Well, now also the Assistant directors and the crew of the movie can say that there could not be a better actor.