Channing Tatum and Jenna Dewan
The "Magic Mike" star and his lovely actress/dancer wife Jenna Dewan met in 2006 during the filming of "Step Up." They officially started dating after production wrapped, were engaged in 2008 and married on July 11, 2009, in Malibu.
Brad Pitt and Angelina Jolie
The headline-grabbing couple was born out of their filming 2005's action adventure "Mr. and Mrs. Smith." Though rumors swirled of an on-set romance, Brangelina insisted that they didn't start dating until after Pitt was officially separated from then-wife Jennifer Aniston. Pitt was not Jolie's first set-generated romance, she had married onetime co-stars Jonny Lee Miller and Billy Bob Thornton.
Jennifer Garner and Ben Affleck
Ben Affleck and Jennifer Garner met in 2003 on the set of "Daredevil," shortly after Garner ended a relationship with another co-star, Michael Vartan, whom she met on "Alias." Affleck and Garner became engaged nine months later and married on June 29, 2005. Similar to Jolie's serial on-set dating, Jennifer Garner had previously dated and married her "Felicity" co-star Scott Foley.
Sarah Michelle Gellar and Freddie Prinze Jr.
Although Sarah Michelle Gellar and Freddie Prinze Jr. met and became friends on the set of 1997's teen horror flick "I Know What You Did Last Summer," they didn't start dating until 2000.The couple became engaged in 2001 and were married in Mexico on September 1, 2002 in a ceremony officiated by "Rock of Ages" director Adam Shankman, with whom Gellar had worked on "Buffy the Vampire Slayer."
Jay-Z and Beyoncé
Despite their superstar status and being named Forbes magazine's top earning couple in entertainment last year, Jay-Z and Beyoncé are the most private couple on this list. We don't know the official start of their relationship, but all reports point to their musical collaborations on 2002's hits "03 Bonnie & Clyde" and "Crazy in Love." The couple married in April 2008.
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