Sienna Miller — Who Might Be Breaking Up With Balthazar Getty — Celebrating Halloween in London

Sienna Breaks From Balthazar to Party in London

Sienna Miller was surrounded by friends as she celebrated Halloween in London on Friday night, but Balthazar Getty was nowhere in sight. Despite their recent Italian vacation and kissy stop in NYC, trouble is apparently brewing between the duo, who are said to be taking a break because he is bothered by her partying and she's insecure about his continued contact with his wife. Sienna's keeping her mind off her love troubles with socializing and work — she looked happy grabbing a drink with a friend today, and she recently appeared in a strange Damien Hirst-directed music video for UK band The Hours. Sienna and Balthazar might not be able to go the distance together, but it doesn't seem like there would be too many broken-hearted fans if they didn't last.

Splash News Online and Bauer-Griffin Online