Matt Damon and his wife Luciana renewed their wedding vows on the Caribbean island of St. Lucia Saturday, PEOPLE confirms.
The couple exchanged vows at sunset as their 50 guests, including their four daughters and actors Ben Affleck and Jennifer Garner, as well as Ocean's costars Casey Affleck and Don Cheadle looked on.
"It was a very family-oriented and happy celebration," a source tells PEOPLE. "Many guests brought their children (although Ben and Jen did not). After the ceremony, guests enjoyed an evening cocktail reception on the beach. Children were running around and playing with white parasols."
Earlier Saturday, the actor appeared relaxed and happy as he paddle boarded in the crystalline blue waters near the resort.
The ceremony took place Saturday on the beach in front of a star-studded gathering of family and friends. The Bride wore a custom made Naeem Khan gown, and the men in the wedding party were all decked out in white.
Sources say the Elysium star and his ladylove where joined by Matt's BFF Ben Affleck, his wife Jennifer Garner, Chelsea Clinton, Robert DeNiro & Grace Hightower, Emily Blunt & John Krasinski, Don Cheadle & Brigid Coulter, Chris Hemsworth & Elsa Pataky, Stanley & Felicity Tucci, Casey Affleck & family and Terry Kinney.
It's no surprise that the guest list was star-studded. But a source tells E! News exclusively that all the guests were stunned to discover that Jimmy Kimmel was officiating the ceremony, a secret that Matt and Luciana reportedly kept from everyone until the last moment.
A source on the island says that the ceremony was held under huts covered in creamy white material that looked like silk. And the whole top-secret renewal getaway was reportedly orchestrated for the bride and groom by celebrity event planner Bryan Rafanelli.
An eyewitness tells Us that Damon and the bride exchanged vows under thatched roofs right at sunset -- with the groom wearing a tan-colored suit and flip-flops, and the bride, 36, donning a cream-colored gown featuring a sequined belt at the waist. The couple's daughters -- Isabella, 6, Gia, 4, Stella, 2, and Alexia, Luciana's daughter from a previous marriage -- wore light-colored dresses to match their mom. After the 15-minute ceremony, guests (all of them wearing shades of cream and ivory) were escorted onto the beach for a cocktail reception (completely with Tiki torches).
"This isn't a 'Hollywood' wedding," one insider tells Us. "Matt wanted it to be fun, happy and private. He felt like Luciana deserves this, first and foremost."
"They've wanted to do it for a long time," another pal says of the vow renewal. "They had a tiny ceremony the first time, and wanted to celebrate with family and friends."
Security was tight at Matt Damon and Luciana Barroso’s vow renewal celebration in St. Lucia over the weekend, but we managed to get some details about the A-list affair. We hear that guests included Newton’s John Krasinski and his wife, Emily Blunt; Boston’s favorite director Ben Affleck and his wife, Jennifer Garner; actor Chris Messina, of “Argo” and Mindy Kaling’s “The Mindy Project,” and his wife, Jennifer Todd, who runs Affleck and Damon’s production company; “Thor” star Chris Hemsworth and his wife, Elsa Pataky; “Good Will Hunting” director Gus Van Sant; actor Stanley Tucci and his wife, Felicity Blunt (Emily’s sister); Chelsea Clinton and her husband, Marc Mezvinsky; and late night guy Jimmy Kimmel, who apparently officiated the ceremony. We’re also hearing that the weekend ceremony was orchestrated by Boston’s own celebrity event planner Bryan Rafanelli, but not surprisingly, he hasn’t confirmed a thing.