The dashing pair met on the set of Hope & Faith in 2004.
"I didn't know who he was from 90210, but I liked him right away," Fox told The New York Times Magazine in 2009. "Everyone was around the monitor watching a scene, and Brian accidentally touched my leg. I remember literal electricity shooting through me and out me from every direction. It was like magic."
Green (not pictured) makes a cameo appearance in Fox's 2008 film How to Lose Friends and Alienate People.
Fox and Green reportedly got engaged in 2006. Then, in February 2009, rumors swirled that the pair had called off their wedding plans.
Although, Fox and Green were spotted looking very much in love shortly after the breakup rumors.
In June 2009, Fox confirmed her relationship status by explaining to The Sun, "I'm what you'd call single."
The split didn't last for long. In June 2010, Green again proposed to Fox while the pair vacationed in Hawaii.
Just weeks after Green popped the question, the two tied the knot in a private ceremony at the Four Seasons Hawaii.
Just a few months after walking down the aisle, the newlyweds traveled to the Magic Kingdom in Florida for a romantic vacation.
In a 2011 interview with Details, Fox's Transformers co-star Shia LaBeouf hinted the two had a connection while filming their blockbuster flick.
"Look, you're on the set for six months, with someone who's rooting to be attracted to you, and you're rooting to be attracted to them," he told the magazine after being asked if he and Fox hooked up. "I never understood the separation of work and life in that situation. But the time I spent with Megan was our own thing, and I think you can see the chemistry onscreen."
Despite LaBeouf's revelations, the couple seemed as strong as ever. They showed up hand-in-hand at an L.A. Lakers basketball game in December 2011, and even talked of renewing their vows.
In 2012, E! News exclusively confirmed the actress' pregnancy. Green and Fox welcomed their first child together, a son named Noah Shannon Green, later that year.
In 2014, Fox and Green added another baby boy to the family, Bodhi. The couple were known to be very private and rarely ever shared any photos of their sons, but during an appearance on Ellen, the public got a glimpse of both Noah and Bodhi.
In 2015, Fox filed for divorce from Green. She cited "irreconcilable differences" as the reason for the split.
In 2016, E! News learned that Fox was expecting her third child. She and Green welcomed a son, Journey River Green, later that year. A source told E! News the two stars weren't getting a divorce "anytime soon."
In 2018, Vanessa Marcil published accusations against her ex Green regarding their son, Kassius. Marcil claimed Fox and Green "completely cut Kass out of their lives." Green and Fox did not publicly comment on Marcil's claims.
Fox officially filed to dismiss the divorce proceedings in 2019, and the couple made their first joint red carpet appearance in five years.
Green sparked split speculation after he was spotted without his wedding ring in April 2020. A source also told E! News the two are living separately. Then, in May, Fox was spotted hanging out with Machine Gun Kelly. Green confirmed he and Fox are "trying to sort of be apart." He also said Fox and the rapper are friends.