Bradley Cooper, Sienna Miller to star in 'Chef'

LOS ANGELES, June 19 (UPI) -- Sienna Miller has joined the cast of Chef.

The 32-year-old actress will star alongside Bradley Cooper and Omar Sy in the new movie. She and Cooper just finished production on the Clint Eastwood biopic American Sniper.

Chef was written by Steven Knight (Eastern Promises), and follows a chef and his team as they attempt to create the best restaurant ever. John Wells (August: Osage County) will direct, with Wells, Michael Shamberg, Stacey Sher and Erwin Stoff as producers.

Director Jon Favreau recently debuted a comedy film of the same name that also focuses on the culinary industry.

Miller is scheduled to star in a number of films in 2015, including Mississippi Grind and Black Mass. Cooper will next appear as the voice of Rocket in Guardians of the Galaxy on August 1, while Sy will appear alongside James Franco in Good People on September 26.