Zhang Ziyi in a backless gown

Actress Zhang Ziyi poses in a backless gown on the red carpet for a phalanx of photographers at the Cannes Film Festival in Cannes, France on May 24, 2009. The occasion was the premiere of the film Coco Chanel & Igor Stravinsky. Zhang Ziyi was born in 1979, so she turned 30 the year this photo was taken. Zhang did not appear in the film; she was just attending the screening.