The singer is out and about in London after a horseback-riding mishap. Plus: Jennifer Garner, Sienna Miller and more

MOB SCENE

With her bodyguard hovering protectively, Sienna Miller makes her way through a crowd of photographers after lunch with a pal in London's Notting Hill neighborhood on Friday. The previous day, after she was spotted crying outside estranged fiancé Jude Law's home, reps for Law said she was upset by the hoard of paparazzi.