British actress Sienna Miller will promote jewellery and pens from Mont Blanc for charity.
According to mirror.co.uk, the 27-year-old Miller is posing draped in jewels for a Unicef campaign. She supports the United Nations children's charity. She along with 11 celebrities like Hilary Swank and Eva Longoria will be photographed in jewels.
Miller's agent did not comment on how much she is paid for the shoot. She is also set to star on Broadway in the play After Miss Julie.