Penelope Cruz and Javier Bardem started dating the same year they made "Vicky Cristina Barcelona," in 2007.
Leslie Mann met Judd Apatow when she auditioned for "The Cable Guy" in 1996.
Goldie Hawn and Kurt Russell started a relationship in 1983 while shooting "Swing Shift." The couple still remains together after 34 years.
Humphrey Bogart and Lauren Bacall started seeing each other while filming "To Have and Have Not" in 1944. They were married until Bogart died in 1957.
Miley Cyrus and Liam Hemsworth met on the set of 2010's "The Last Song." After briefly getting engaged in 2012, the couple broke up for a short period of time in 2013. Eventually, the got back together in 2015.
Natalie Portman and Benjamin Millepied met while shooting the dance thriller 'Black Swan.' The two married in 2012.
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 while shooting "The Place Beyond the Pines."
Ryan Reynolds and Blake Lively shot 2011's "Green Lantern" together, but it wasn't until afterward that they started dating. They married in 2012 and are still going strong.
Paul W.S. Anderson directed Milla Jovovich in the first "Resident Evil" movie back in 2002. They married in 2009.
Kristen Stewart and Robert Pattinson filmed "Twilight" together in 2007 and started seeing each other in 2008.
Anna Camp and Skylar Astin started dating after working in "Pitch Perfect." The two got married in 2016.
Channing Tatum and Jenna Dewan met on the set of "Step Up" in 2006 and started dating after shooting. They married in 2009.
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." After having six children, they married in 2014, but they separated in September of 2016.
Kim Basinger and Alec Baldwin played lovers in 1990 in "The Marrying Man." They married in 1993, 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.
Kyra Sedgwick and Kevin Bacon met on the set of the PBS film "Lemon Sky." They married in 1988.
While making "Woman of the Year" in 1942, Spencer Tracy and Katharine Hepburn began a relationship. The couple continued dating until Tracy's death in 1967.
Hugh Dancy and Claire Danes starred together in "Evening" in 2007. They married in 2009.
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.
Rachel Bilson and Hayden Christensen met while filming the 2008 film "Jumper" Although not married, the couple still remains together.
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, which lasted for 10 years. They then divorced, remarried, and then got divorced again.
Nicole Kidman met Tom Cruise in 1989 on the set of "Days of Thunder." They married a year later, but eventually 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." The couple got married in 1958 and stayed together until Newman's death in 2008.
Naomi Watts and Liev Schreiber starred together in the romance "The Painted Veil" in 2004. They've been married for 17 years.
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.
Warren Beatty directed and starred with Annette Bening in 1991's "Bugsy." The couple married in 1992.
Tim Robbins and Susan Sarandon met in 1988 while filming "Bull Durham." They 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 married a year later, but divorced in 2003.
Helen Mirren starred in Taylor Hackford's film "White Nights" in 1985 and they started seeing each other in 1986. They finally married in 1997
Sarah Michelle Gellar and Freddie Prinze Jr. met while filming "I Know What You Did Last Summer" in 1997 and started dating in 2000. The couple got married in 2002 and have two children.
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