The Cannes Film Festival red carpet is known for its parade of glamorous dresses. Repeats are rare. That's why we're particularly intrigued by the Ulyana Sergeenko silhouette that become the most popular at this year's festival, with three stars choosing the same look by the Russian designer. While the base of the dress is the same for each (off the shoulders with a deep plunging neckline), the bottoms vary slightly. Chinese actress Zhang Yuqi's green version had a ballgown skirt, Fan Bingbing's ice blue design had a train, and Natalia Vodianova's red tea-length style hit just above her ankles. So, whose look do you prefer? Tell us by voting in the poll below!