Brad Pitt and Angelina Jolie
Their characters tried to kill one another in "Mr. and Mrs. Smith" in 2005 and somewhere in between, the actors fell for one another. Although Brad was still married to actress Jennifer Aniston at the time, both Pitt and Jolie have denied any romantic extramarital affairs.
But there's little doubt the roots of Brangelina go back to that movie set.
Together the happy yet tired couple have six children: Maddox Chivan, (adopted from Cambodia, shared with ex-husband Billy Bob Thorton); Zahara Marley, (adopted from Ethiopia); Shiloh Nouvel; Pax Thien, (adopted from Vietnam); and twins Knox Leon and Vivienne Marcheline.
Pitt and Jolie have no intention of getting married anytime soon, both saying that their main focus is the children in their lives. They have also expressed that they want more children.
Brad on Angelina: "She is the love of my life."
Last up, we find out what happens when Danny Zuko settles down ...
John Travolta and Kelly Preston
They found a strong attraction toward one another on the set of "The Experts" in 1989 but were in relationships at the time. Two years later, the two became experts on each other and tied the knot. Hey, who wouldn't fall for Danny Zuko?
The couple has three children: Benjamin Hunter Kaleo and Ella Bleu. Travolta and Preston also grieved when their son, Jett, who died in 2009 due to a seizure at the age of 16.
Travolta has said "having kids gives a mandate to make your marriage work ... the kids are a big motivating factor."
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