Of course, it's her accessories we're focused on though. That beautiful turquoise blue Burberry floral clutch stole the show.
Though we last saw Sienna clutching the bag at Sir David Frost's memorial looking uncharacteristically conservative in a cream dress and simple make up, last night's look proved she hasn't put her dancing shoes away just yet.
In other happy news, if you've been missing Sienna on-screen get excited. She's currently working on new film Mississippi Grind, alongside Ryan Reynolds, and is rumoured to be playing Bradley Cooper's wife in movie American Sniper too!
Looking forward to seeing more of Sienna Miller? Tweet us @handbagcom
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