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.
By The Sea
All good things must come to an end, and Brangelina's end was a tough one. "By the Sea," which tells a story of a disintegration of a marriage, was a "test" of her own marriage to Brad, Jolie confirmed. As it turns out, the movie felt more like a documentary than it did a film.
Rumors about Jolie's "dark side" were spread during filming, and Jolie herself admitted that she butted heads with her husband on set. One year after the movie's release, the couple separated, and Jolie filed for divorce.
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.
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...
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.