Sienna Miller took a break from her duties as a juror at the Cannes Film Festival to enjoy the weather with her nearly 3-year-old daughter, Marlowe, over the weekend. The duo dipped in the pool at the Eden Roc hotel before taking a boat to a yacht, where they lounged on the deck and swam in the sea. Sienna arrived in Nice last week and made her first red carpet appearance alongside fellow juror Jake Gyllenhaal on Wednesday. Since then she's attended multiple events, including Friday's Sea of Trees screening and the Saturday premiere of Carol. See even more stars at Cannes as the festival continues this week!