Sienna Miller has told friends a film staring her partner Balthazar Getty would be “movie gold” sources have told The Sun. Sienna and Balthazar’s relationship has a received negative press after the Brothers And Sisters star left his wife and four children. “Her advisers are warning how unpopular that would be but Sienna insists it could be movie gold and is looking for a script,” the insider says. “People haven't taken to them as a pair due to the way they got together. They fear people will find it a bit too sickly - as though they are rubbing his wife's face in it.”















