Brolin shared a gorgeous black-and-white photo on Sunday of the newlyweds looking absolutely ecstatic after they were pronounced man and wife. He captioned the image with a poem from e. e. cummings and added a note from both him and Boyd that read, "Thank you to all who were involved and made the trek: friends and family alike. We love you all dearly, deeply, and without measure. ❤️JB&KB."
Boyd shared the same photo as well as one of the two on the dance floor, with Brolin kissing his new wife's forehead.
Though there were rumors of Bradley Cooper and Matt Damon attending, the couple were surrounded by close family and friends who used the hashtag #jbkbstucktogether to document the festivities.
"My partner in crime," he captioned a photo of himself and Boyd posing by the ocean. "Yesterday we robbed a bank. Today we're thinking about painting the town red like that Clint Eastwood western. Tomorrow...sh*t, tomorrow I think we're laying low, recovering, coming up with some other debaucherous act after a little shuteye. #lookbehindyou #nowheresafe #bonnieandclyde #saltyanddumb."
"You just make things...better. @kathrynboyd_ #stucktogether," he captioned another sweet photo.
This marks Brolin's third time walking down the aisle. He was previously married to actress Alice Adair, with whom he had two children, 28-year-old Trevor and 22-year-old Eden. The two split in 1994. He was later married Diane Lane from 2004 to 2013.