Thurman is also a mom to daughter Maya, 14, and son Levon, 11, her kids with ex-husband Ethan Hawke. She welcomed Luna, her first child with financier Busson, in July 2012. The couple began dating in 2007, but called off their engagement in 2009; They reunited in 2011.
"My daughter came up with the best excuse, which was that I probably wouldn't get to have any more children, so I just put every name that I liked into [Luna's]," the Smash actress said. "We couldn't quite agree on the name, so we call her Luna. She's lucky that way."