Sienna Does the Groucho Groucho Shake

Sienna Miller storms out of London’s fashionable Groucho Club to an awaiting taxi on Thursday night.

The 25-year-old actress has been filming her comedy Hippie Hippie Shake in the British capital. She shot scenes stark naked recently, and those photos of her as a free loving hippie flower girl are floating around the internet. Her dreamy pose was shot yesterday in a London park.

10+ pictures inside of Sienna doing the Groucho Groucho…