Matt and Luciana Damon at Party in London Pictures

Over the weekend, Matt Damon and his wife, Luciana, celebrated pal Lisa Snowdon's 40th birthday in London, and now we've got exciting images from inside the bash. Matt and Luciana sipped drinks, danced, and chatted with friends Chris Hemsworth and Elsa Pataky, who recently joined them for a sunny vacation. The foursome met up with a group on a mega yacht off the coast of St. Barts earlier this month, and they were spotted riding down a massive slide, swimming, and making a splash in the water. Elsa and Chris are expecting their first child together, and Elsa's baby bump was on display in tiny bikinis throughout the trip.