If it were Hallowe'en, I would wonder if Sienna Miller is dressed as the Bride of Aladdin, but as it is I just have to assume she's off her rocker again:
Her front-close shirt appears to be working its way open as best it can; I wish it the best of luck in freeing itself from those trousers. For they are not bell-bottoms: They appear to be elasticized around her ankle, creating that unfortunate billowing effect that one only ought wear if one hopes to be rubbed heartily, and immediately prior to some slobbering oaf making three slurry wishes that chiefly involve both invasive procedures and some Nachos Bell Grande.
The pervasiveness of boho-reek has me in a delicate enough state; if genie-wear is on its way in, I might plunge into a dark downward spiral the likes of which will make Kate Holmes-Cruise's recent antics look like nothing more than a gentle gust of wind on the outskirts of Crazytown.
I think her sash unfolds into a magic carpet. She really shouldn't operate that thing if she's tipsy; hopefully someone can fly it home for her.