Penelope Cruz and Javier Bardem started dating the same year they made "Vicky Cristina Barcelona," in 2007. They married in 2010 and have two children together.
Leslie Mann met Judd Apatow when she auditioned for "The Cable Guy" in 1996. They've been married for nearly 20 years and have two daughters.
Goldie Hawn and Kurt Russell started a relationship in 1983 while shooting "Swing Shift." In addition to children from previous relationships, the couple have a son together.
Humphrey Bogart and Lauren Bacall started seeing each other while filming "To Have and Have Not" in 1944. They starred in three more movies together, and were married until Bogart died in 1957.
Not even Miley Cyrus and Liam Hemsworth could resist a Nicholas Sparks movie. They met on the set of 2010's "The Last Song."
They called off an engagement a few years ago, but now it looks like they're back together, according to Us Weekly.
Natalie Portman and Benjamin Millepied met while shooting the dance thriller 'Black Swan.' They have a son together.
Evanna Lynch, who played Luna Lovegood in the "Harry Potter" movies, is dating Robbie Jarvis, who played James Potter in flashback scenes in "Harry Potter and the Order of the Phoenix."
While shooting "The Light Between Oceans" in 2014, Alicia Vikander and Michael Fassbender started dating.
The director of "Oceans," Derek Cianfrance, is a good matchmaker. Ryan Gosling and Eva Mendes started dating with "The Place Beyond the Pines" — now they have two children.
Ryan Reynolds and Blake Lively shot 2011's "Green Lantern" together, but it wasn't until afterward that they started dating. They're currently expecting their second child together.
Paul W.S. Anderson directed Milla Jovovich in the first "Resident Evil" movie back in 2002, and now they're married with two children.
Kristen Stewart and Robert Pattinson filmed "Twilight" together in 2007 and started seeing each other in 2008. After six tumultuous years, they called it quits in 2014.
Anna Camp and Skylar Astin started dating after working on "Pitch Perfect," and got married in September 2016.
Channing Tatum and Jenna Dewan met on the set of "Step Up" in 2006 and started dating after shooting. They married in 2009 and have a daughter.
Even though he was with Jennifer Aniston at the time, Brad Pitt fell in love with Angelina Jolie in 2004 on the set of "Mr & Mrs. Smith." They're raising six kids together and were married in 2014. Jolie filed for divorce in September 16.
Kim Basinger and Alec Baldwin played lovers in 1990 in "The Marrying Man." They married in 1993 and had a daughter together, but their marriage came to an end in 2002.
The most memorable thing about "Daredevil" was the off-screen romance between Ben Affleck and Jennifer Garner, who married in 2005 and had three children together. They broke it off a decade later.
Kyra Sedgwick and Kevin Bacon met on the set of the PBS film "Lemon Sky" and married in 1988. They have two children together.
While making "Woman of the Year" in 1942, Spencer Tracy and Katharine Hepburn began a relationship that lasted for nine movies and until his death in 1967.
Hugh Dancy and Claire Danes starred together in "Evening" in 2007. They married in 2009 and have a child together.
The only good thing to come out of "Fantastic Four" is that Jessica Alba and Cash Warren (the son of actor Michael Warren) met while filming it in 2004. They married in 2008 and have two daughters.
Rachel Bilson and Hayden Christensen met while filming the 2008 film "Jumper" and had their first child in 2014.
Both were married at the time, but Richard Burton and Elizabeth Taylor started seeing each other when they made 1963's "Cleopatra."
They married in 1964 and lasted for ten years, then divorced, then got back together for another year, then divorced again. This Vanity Fair story takes a deep look at their turbulent romance.
Nicole Kidman met Tom Cruise in 1989 on the set of "Days of Thunder." They married a year later, adopted two children together, and starred in "Far and Away" and "Eyes Wide Shut." They separated in 2001.
It was a long, hot summer in 1957 when Joanne Woodward and Paul Newman started dating on the set of "The Long, Hot Summer."
They married in 1958 and were together until Newman died in 2008. The couple also starred in nine more movies together and raised three daughters.
Naomi Watts and Liev Schreiber starred together in the romance "The Painted Veil" in 2004. They're now married with two sons.
Paul Bettany first had a crush on Jennifer Connelly when he saw her in "Labyrinth" in the 1980s. They starred together in 2001's "A Beautiful Mind," and then married in 2003.
Frances McDormand met writer-director Joel Coen when she auditioned for their debut film "Blood Simple" in 1983. The two married a year later, and she's acted in several of his movies. They have a son together.
Warren Beatty directed and starred with Annette Bening in 1991's "Bugsy." The two married in 1992 and have four children together.
Tim Robbins and Susan Sarandon met in 1988 while filming "Bull Durham." They had two kids together and separated in 2009.
Ali MacGraw and Steve McQueen met while working on "The Getaway" in 1972. They married in 1973 and divorced in 1978.
In 1997, Uma Thurman and Ethan Hawke starred in the cult classic "Gattaca" and fell in love. They had two children before divorcing in 2003.
Helen Mirren starred in Taylor Hackford's film "White Nights" in 1985 and started seeing each other in 1986. They married in 1997.
Sarah Michelle Gellar and Freddie Prinze Jr. met while filming "I Know What You Did Last Summer" in 1997.
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