Sienna Miller: Dinard British Film Festival Juror!

Sienna Miller arrives at Palais des Arts et du Festival on Wednesday (October 6) in Dinard, France.

The 28-year-old actress is in town for the 21st Dinard British Film Festival, where she will be a jury member.

Last week, Sienna spent some quality time with boyfriend Jude Law. The two dropped by Claridge’s Hotel in London for a date night.

Sienna is lending a fashionable hand to help raise money for the Royal Marsden Cancer Campaign.

She’ll be donating items from her personal wardrobe to be auctioned off (bidding opens October 21 and closes on the 31st). Victoria Beckham and Milla Jovovich are some of the other stars participating.