Stars Celebrate Valentino!

Most events need only one dress, but Hollywood's most fashionable had fun showing off multiple frocks this weekend in Rome. Anne, Uma, Sarah Jessica and more celebrate the fashion house's 45th anniversary in high style. By Melissa Liebling-Goldberg

ANNE HATHAWAY

Turned out in his sparkling minis and a long sweeping vintage gown for the gala ball, the actress enthused of Valentino to PEOPLE, "I want him to continue designing for 100 years!"