Sienna Miller: Twenty8Twelve Collection is 'Bigger Than Ever Before'

Sienna Miller (in a Twenty8Twelve dress) and her sister and co-designer, Savannah, arrive at the announcement of the 2011 Nominees for the British Fashion Awards on Wednesday (September 1).

The 28-year-old actress Twenty8Twelve designer, who was also spotted with British Fashion Council chairman Harold Tillman (pictured) told Vogue UK that she was very excited about her spring/summer 2011 collection, calling it “bigger than ever before”.

FYI: Sienna accessorized with a bracelet from London boutique Pebble and a one-of-a-kind gold lizard-skin “Fidelity” box clutch from Jacques Fath.