Good Casting Caused These Actors To Leave Their Partners For Co-Stars

Have it be chemistry or a physical attraction, some actors stray towards their co-stars and away from their real-life partners.

Romantic fantasy turned into reality for spoken-for actors such as Kristen Stewart and Daniel Craig, as they became enamored and ultimately left their partners for whirlwind romances with their co-stars.

Keri Russell: Shane Deary For Matthew Rhys

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The timing of Keri Russell's divorce from her husband Shane Deary begs the question of whether or not it had something to do with her The Americans co-star Matthew Rhys.

Around the same time as their separation, Russell began dating Rhys. Many fans believe the two had a relationship well before Russell left her husband.

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Kate Hudson: Chris Robinson For Owen Wilson

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While filming the movie You, Me, and Dupree, actress Kate Hudson was married to The Black Crowes rock star Chris Robinson. But that didn't keep her eyes from wandering.

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During the long months of filming, Hudson began a relationship with co-star Owen Wilson, a whirlwind romance that only lasted six months.

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Billy Bob Thornton: Laura Dern For Angelina Jolie

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Actor Billy Bob Thornton dated actress Laura Dern from 1997 until 1999. The two were actually engaged and getting ready to get married. That was all before Thornton began filming Pushing Tin.

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On the set, Thornton met Angelina Jolie. The two fell in love, Thornton broke up with Dern, and he and Jolie tied the knot in 2000.

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Ryan Phillippe: Reese Witherspoon For Abbie Cornish

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Actors Ryan Phillippe and Reese Witherspoon fell in love while filming Cruel Intentions. They were one of the "it couples" in Hollywood. Sadly, that all came crashing down when Phillippe began a relationship with Australian actress and rapper Abbie Cornish.

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The two met while filming Stop-Loss and were together from 2007 until 2010.

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Daniel Craig: Satsuki Mitchell For Rachel Weisz

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James Bond actor Daniel Craig dated and was engaged to marry film producer Satsuki Mitchell in 2010. Alas, that was also the year he worked on Dream House with Rachel Weisz.

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While it wasn't the first time the two actors worked together, it was the first time they started a relationship. Both actors left their respective partners and got married in 2011.

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Ted Danson: Cassandra Coates For Whoopi Goldberg

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Ted Danson's relationship with Whoopi Goldberg resulted in a $30 million divorce settlement, one of the costliest in the history of Hollywood.

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From 1977 until 1993, Danson was married to Cassandra Coastes, a relationship that came to a screeching halt when Danson began a relationship with Goldberg on the set of their movie Made in America.

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Meg Ryan: Dennis Quaid For Russell Crowe

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A scandal with three high-profile actors isn't going to go unnoticed. This is exactly what happened when Meg Ryan met Russell Crowe on the set of Proof of Life.

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After being married to Dennis Quaid from 1991 until 2001, Ryan began a relationship with her co-star, resulting in her separation from Quaid.

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LeAnn Rimes: Dean Sheremet For Eddie Cibrian

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While LeAnn Rimes is known for her singing, she has also appeared in a few television films, such as Northern Lights. It was actually on the set of the movie where she met actor Eddie Cibrian.

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A relationship between the two began, and each left their respective partners, including Rimes' husband of seven years, Dean Sheremet.

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Ewan McGregor: Eve Mavrakis For Mary Elizabeth Winstead

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Star Wars actor Ewan McGregor was married to Eve Mavrakis for 22 years, and the two seemed happy and in love. Then he met Mary Elizabeth Winstead during the third season of the popular television show Fargo.

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The two actors began a relationship in 2017, and McGregor ultimately left his wife a year later.

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Justin Theroux: Heidi Bivens For Jennifer Aniston

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Actor Justin Theroux was in a 14-year-long relationship with Hollywood stylist Heidi Bivens when he shot the 2011 film Wanderlust. One would think being together for over a decade would keep the actor from straying.

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It didn't. While shooting the film, he became enamored with co-star Jennifer Aniston, leaving Biverns in the process.

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Billy Crudup: Mary-Louise Parker For Claire Danes

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Actor Billy Crudup left an eight-year marriage to Mary-Louise Parker when he began a whirlwind romance with Claire Danes. The two met while on the set of Strange Beauty in 2003, and, from there, everything spiraled.

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Crudup and Danes were only together for three years when Crudup once again left her partner for another co-star.

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Brad Pitt: Jennifer Aniston For Angelina Jolie

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One of the biggest relationship scandals is arguably between Brad Pitt, Jennifer Aniston, and Angelina Jolie. At the time, Pitt and Aniston were Hollywood's power couple. But all that changed when he met Jolie on the set of Mr. and Mrs. Smith.

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The two began a whirlwind romance, one that resulted in a marriage and six children!

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Johnny Depp: Vanessa Paradis For Amber Heard

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For 14 years, Johnny Depp was in a committed relationship with model Vanessa Paradis. Even though they weren't married, the two seemed to be going the distance. That is until Depp met Amber Heard on the set of The Rum Diary.

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Falling hard and fast, Depp left Paradis for Heard.

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Ariana Grande: Dalton Gomez For Ethan Slater

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Ariana Grande married Dalton Gomez in 2021. The marriage didn't last, though, and Grande left Gomez in 2023. The pop star moved on fairly quickly, starting a relationship with her Wicked co-star the same year.

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The co-star: Ethan Slater, better known as the guy who brought SpongeBob SquarePants to life on the Broadway stage.

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Morena Baccarin: Austin Chick For Ben McKenzie

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There was a bit of a scandal on the set of Gotham, all revolving around actress Morena Baccarin. Her husband, Austin Chick, filed for divorce while she was filming the series.

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At the time, she all but admitted to a relationship with co-star Ben McKenzie. The two wound up getting married and having a child together.

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Kristen Stewart: Robert Pattinson For Rupert Sanders

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There was nothing more saddening for Twilight fans than when the front cover of tabloids had a picture of her with Snowwhite and the Huntsman director Rupert Sanders. At the time, she was publicly dating her co-star, Robert Pattinson.

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After the scandal broke that Stewart was seeing Sanders, the two Twilight stars went their separate ways.

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Marilyn Manson: Dita Von Teese For Evan Rachel Wood

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Known for being a paled-face rock musician, Marilyn Manson first met Evan Rachel Wood while on the set of Phantasmagoria: The Visions of Lewis Carroll. At the time, he was married to Dita Von Teese.

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Even so, he became enthralled with Wood, eventually leaving his wife for the young actress.

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Harrison Ford: Mary Marquardt For Carrie Fisher

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One of the biggest relationship surprises happened in the 1970s. While filming Star Wars, Harrison Ford began a quiet on-set relationship with his co-star and on-screen love interest, Carrie Fisher.

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While their relationship was hush-hush, people had an inkling they were together. Fisher spilled the tea in her book The Princess Diarist.

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John Malkovich: Glenne Headly For Michelle Pfeiffer

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Rumor has it that John Malkovich's marriage to Glenne Headly was already on the rocks when he met Michelle Pfeiffer on the set of Dangerous Liaisons. Apparently, the rough patch was enough for Malkovich to begin a relationship with his co-star.

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While Malkovich and Headly went their separate ways, nothing came out of his relationship with Pfeiffer.

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Kenneth Branagh: Emma Thompson For Helena Bonham Carter

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Kenneth Branagh and Emma Thompson have appeared in numerous films together and were married for seven years. All of that came crashing down when he met Helena Bonham Carter on the set of Mary Shelley's Frankenstein.

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The two began a relationship with one another, resulting in Branagh and Thompson splitting up.

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Chad Michael Murray: Sophia Bush For Paris Hilton

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Chad Michael Murray and Sophia Bush were young and in love when they first met on the set of One Tree Hill. They quickly got married, but everything went spiraling out of control when Murray starred alongside Paris Hilton in House of Wax.

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After being married for one month, Murray had a relationship with Hilton, resulting in his separation from Bush.