Cleopatra
When Elizabeth Taylor and Richard Burton were put on the set of “Cleopatra” together in 1961, they hated each other. To her, he was brutish and dull; to him, she was a diva. When the time came for their first on-screen kiss, all of their hatred was suddenly forgotten. The director called cut numerous times, but the actors couldn’t stop kissing.
The only problem? They were both married at the time. When word of their infamous kiss got out, their marriages ended. The two eventually divorced their respective partners and married each other, divorced and then re-married!
Mr. & Mrs. Smith
One of the most infamous Hollywood affairs developed during the production of "Mr. & Mrs. Smith." Although Jennifer Aniston cited "irreconcilable differences" in her divorce, Pitt admitted to falling in love while shooting the movie with Angelina Jolie. All the rumors of the on-set production seemed to be true.
Jolie also spoke of the sparks that flew with the two were filming, despite her hesitance to pursue a married man. They both felt something happening between them, and one month after Aniston filed for divorce, Pitt and Jolie were spotted vacationing in Africa. And just like that, we had Brangelina!
To Have And Have Not
Before becoming one of the most famous couples in Hollywood history, Lauren Bacall and Humphrey Bogart were just friends. The kind of friends who would hold hands and kiss on set. Despite the 25 year age difference, the cast and crew started noticing flirtation sparking between 19-year-old Bacall and 44-year-old Bogart.
The only catch was, Bogart was married to actress Mayo Methot, who was upset to hear about the actors' flirtation. The two divorced soon after the film was released. Bogart and Bacall married, and the couple stayed together until he died in 1957. Age ain't nothing but a number!
The Outlaw Josey Wales
Clint Eastwood is known for being a lady's man, but his most notorious fling was on the set of "The Outlaw Josey Wales." Though he was married to Maggie Johnson at the time, Eastwood began an indiscreet affair with his co-star Sondra Locke.
The affair eventually led to the two moving in together, but much like Eastwood's past extramarital flirtations, failed. The fling lead to his divorce from Maggie Johnson, which is unsurprising, to say the least!
Days Of Thunder
When "Days of Thunder" began filming in late 1989, Tom Cruise was already in trouble with then-wife Mimi Rogers due to his previous philandering. His on-set whirlwind romance with Nicole Kidman turned out to be the last straw, and Cruise and Rogers divorced just one month into production.
Cruise and Kidman tied the knot on Christmas Eve less than a year later. Their love affair was a rollercoaster, and a few years later, they announced their separation.