Sienna Miller left a theater where she's rehearsing for her upcoming play, Flare Path, last night in London. She looked adorable, so find out how to get her laid-back style! The actress, who recently parted ways with Jude Law, has reportedly already moved on with Tom Sturridge. The pair have been spotted on pub dates around town in recent weeks. Sienna is also keeping up with her close girlfriends, since not only has she been hitting the town with Keira Knightley, but she's also gearing up to join several famous females on the set of New Year's Eve soon.