"Entertainment Tonight" added that the nuptials took place in North Carolina.
It was Brolin's third marriage as he was previously married to Deborah Adair and to Diane Lane.
Playing Rory Gilmore and Jess Mariano, respectively, Alexis Bledel and Milo Ventimiglia were each other's love interests on and off the set for a stretch.
RELATED: These 9 celebrity couples shared on-screen romance in films Their real-life 2006 breakup, however, may require them to keep things professional should Ventimiglia return for the show's Netflix limited revival, because Bledel wound up marrying another on-screen beau.
Slattery and Balsam were married in 1998 and, despite their characters' conflicts, seem anything but "Mad" off-camera.
It must be working since he frequently gushes to reporters about his wife being his soul mate.
Last year, the couple renewed their vows in San Lucia in a sunset ceremony.
Brad Pitt and Angelina Jolie, and more: See which celebrity couples have taken time apart, separated, divorced or otherwise called it quits, for better or for worse. Actors Chris Pratt and Anna Faris announced on Facebook on Sunday, August 6, 2017 that they would be separating after eight years of marriage.
The couple married in 2009 and share a son, Jack Pratt, born Aug. In July 2017, Summer Phoenix officially filed for divorce from actor Casey Affleck.