After seven and a half years, Matt Damon and his wife Luciana Barroso are still madly in love, and they made their continued commitment to each other official by renewing their vows in a private but very star-studded ceremony on Saturday.

For $600,000, Matt rented out the entire Sugar Beach resort on the Caribbean island of Saint Lucia, which is where the romantic ceremony took place. The 42-year-old Elysium star wore a white tux while his gorgeous bride was the center of attention in a cream-colored Naeem Khan gown.

The couple was joined by their three daughters Isabella, Gia and Stella, as well as Luciana's daughter from a previous marriage Alexia, who all matched their mom in light-colored ensembles, according to Us Weekly.

Related Article: Matt Damon on 'Elysium:" Summer's Best Blockbuster?

Also in attendance were some of the couple's famous friends, including Ben Affleck and Jennifer Garner, Emily Blunt and John Krasinski, Chelsea Clinton, Chris Hemsworth and Elsa Pataky, Casey Affleck, Robert DeNiro and Grace Hightower and Stanley Tucci. E! News also reports that Jimmy Kimmel made a surprise performance and officiated the ceremony.

The couple first married in 2005, but instead of a big Hollywood wedding, they opted for a private civil ceremony. While this time around they still kept things intimate, it was finally their opportunity to celebrate their marriage with family and friends. "They've wanted to do it for a long time," a friend of the couple tells Us Weekly.

After the wedding ceremony, the party continued with a reception on the beach. Although the night seems like a fun one, sources say the guests slipped away barely noticed afterwards, likely heading back to their busy schedules at home.

What do you think of Matt's vow renewal gesture to his wife?

Photos Courtesy of: Getty Images