Salma Hayek and Francois-Henri Pinault Salma Hayek and Francois-Henri Pinault

Salma Hayek and her husband, French billionaire Francois-Henri Pinault, have re-tied the knot.

The couple, who first made it legal on Valentine's Day in Paris, exchanged vows before 150 guests Saturday at a star-studded ceremony at Venice's La Fenice opera house, according to People.

Hayek donned a Balenciaga wedding gown by Nicholas Ghesquiere (Pinault's company, PPR, owns Balenciaga) and wore her hair in a bun. The couple's daughter, Valentina, 19 months, was the flower girl, and Pinault's children from his first marriage, Francois, 10 and Mathilde, 8, were part of the ceremony as well.

Guests included Hayek's BFF, Penelope Cruz, Woody Harrelson, Olivier Martinez, Luis Miguel, Ashley Judd, Charlize Theron, Stuart Townsend, Bono, Gael García Bernal, Enrique Murciano, David Blaine, Ziyi Zhang, Anna Wintour and former French President Jacques Chirac.

The nuptials culminated a weeklong wedding celebration, during which guests attended a masquerade ball.

Hayek and Pinault, who briefly called off their engagement last summer, have been together since 2006.