Mary Shelley’s Frankenstein
Kenneth Branagh had been married to Emma Thompson for five years before the production of “Mary Shelley’s Frankenstein” started, but little did they know that the film would change everything. The director and star of the film. Branagh couldn’t deny his fascination with co-star Helena Bonham Carter.
Thompson filed for divorce not long after the news broke of Bonham Carter and Branagh’s betrayal. Interestingly enough, Helena and Emma made peace and have no hard feelings. Kenneth and Emma, on the other hand…
The Misfits
Playwright Arthur Miller and Marilyn Monroe had been married for four years when decided to collaborate professionally on the set of "The Misfits." It seemed like a match made in heaven, but the movie's pressures proved to be too much for the doomed couple.
Miller annoyed Monroe with his constant script rewrites and obtrusive sexism. Monroe claimed that the movie's most interesting roles had gone to her male counterparts. It wasn't long before the couple parted ways. "The Misfits" turned out to be the last movie that Marilyn Monroe filmed before her death.
Daredevil
When Jennifer Garner and Ben Affleck started filming "Daredevil" in 2002, they were both in loving relationships. Affleck was a part of the power couple that we know as Bennifer (with Jennifer Lopez), and Garner was married to Scott Foley.
Though no one ever admitted to anything happening on-set, Affleck eventually confirmed that he and Jennifer (Garner) fell in love while filming. A year after the superhero flick premiered in 2003, Affleck ended things with Lopez, and unsurprisingly, Garner divorced Foley.
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!