Gwen Stefani & Rosario Dawson: 'This Must Be the Place'!

Gwen Stefani arrives at the This Must Be the Place premiere during the 2011 Cannes Film Festival on Friday (May 20) in Cannes, France.

The 41-year-old singer and fashion designer stepped out in a long Giorgio Armani dress in white silk with Swarovski‘s red crystal “Power” clutch.

Also attending the premiere: Rosario Dawson, who hit walked the red carpet in a strapless Roberto Cavalli gown with rouching and geometric designs.

The night before, Gwen and Rosario both attended amfAR’s Cinema Against AIDS Gala at the Hotel Du Cap.

25+ pictures inside of Gwen Stefani and Rosario Dawson at the This Must Be the Place premiere…