Sienna Miller Replaced By Cate Blanchett

Sienna Miller arrives at the 2009 Elle Style Awards with feathery shoulders on Monday (February 9) at Big Sky London, England.

The 27-year-old British actress paired her in Matthew Williamson cocktail frock with Tiffany & Co. gold jewelry — doughnut bangle by Elsa Peretti as well as hammered planets drop earrings and a distinctive Zellige medallion ring (both by Paloma Picasso).

Sienna recently vacated the role of Maid Marian in Sir Ridley Scott‘s forthcoming film Nottingham and it looks like Aussie actress Cate Blanchett will be her replacement.

“I think Cate Blanchett is set to take the Maid Marian part,” Mark Strong, who has already been signed up to play Sir Guy of Gisbourne, tells UK’s Telegraph. “She is a wonderful actress and it would make it a much classier film if she was in it.”

Russell Crowe is also confirmed to play Robin Hood.

20+ pictures inside of Sienna Miller @ the 2009 Elle Style Awards…