Sienna Miller stuns Cannes, again!

Sienna Miller stunned in a backless metallic slinky gown as she arrived at one of the most glamorous nights on the Cannes film festival calendar. As a member of the jury at this year's festival, she has been out and about rather a lot during the 11-day long extravaganza. And, as she turned to show off her back, the beauty revealed the delicate cross-over straps etching their way across her toned figure. With her hair swept back in a low bun, she completed the look with dramatic red lipstick and carried a black and white striped clutch.