Billy Crudup and Mary Louise Parker were never married, but the couple had been partners for eight years before a certain someone came between them. Parker was also seven months pregnant when Crudup left her for his “Stage Beauty” co-star Claire Dances in 2005.
Both Parker and Danes have shared their sides of the story. Parker has opened up about her devastation in her 2015 memoir, “Dear. Mr. You.” While Danes doesn’t deny her part in the affair, “I was just in love with Crudup and needed to explore that, and I was 24… I didn’t quite know what those consequences would be.
Green Lantern
Though Ryan Reynolds and Blake Lively insist on being coy about when exactly they fell in love, all signs point to "Green Lantern." The couple, who have three children together and are the epitome of what we call "couple goals," were first pointed out, getting cozy in New York City during filming.
Though they called it a "friendship," something about their connection seemed to end their own relationships at the time. Shortly after production ended, Blake broke up with boyfriend and "Gossip Girl" co-star Penn Badgley, and Scarlett Johannson divorced Ryan.
Dream House
Rachel Weisz had been with director Darren Aronofsky for nearly ten years when she entered the production of "Dream House" with Daniel Craig. Craig was engaged at the time, but their connection seemed indisputable.
Both actors claim that working on "Dream House" together was the reason their respective relationships ended, but Rachel has opened up about where her relationship went south before meeting Craig. After ending both their relationships and filming, the couple went public, married a short seven months later, and have been together ever since!
House Of Wax
Teenage jaws dropped and hearts shattered when Nick Carter went on Ryan Seacrest's radio show and declared that his then-girlfriend Paris Hilton had hooked up with Chad Michael Murray while filming "House of Wax." If that wasn't scandalous enough, Murray and "One Tree Hill" co-star Sophia Bush were married at the time.
Bush and Murray were everyone's dream couple, but after the news broke, they quickly separated and divorced. Years later, Bush explained that her divorce from Murray had nothing to with his and Paris's affair and that they were just two stupid kids who had no business getting into a relationship in the first place.
Northern Lights
Who would have thought that a Lifetime movie would end of two marriages? During the filming of the film, "The Real Housewives of Beverly Hills" star Brandi Glanville's ex-husband, Eddie Cibrian, cheated on her with LeAnn Rimes.
Shortly after news of the "Northern Lights" actors hooking up during production, the two divorced their respective partners. It wasn't all for nothing either as Rimes and Cibrian tied the knot in 2011.