Sienna Miller obviously took her engagement ring from Jude Law off and no announcement of regret is making her put it back on. If we had to guess, we'd say she's very obviously showing her ring finger to the photogs outside the theatre. And who goes to a show on the day you break up with your fiancee? That being said, she should work this scorned woman angle, in terms of her career, but go for a sexier look in terms of the wardrobe. The bohemian maternity tops aren't working.
