The couple met through mutual friends more than a year ago.
This is the first marriage for Heming, a 30-year-old model/actress.
Guests included Willis' three daughters from his first marriage to actress Demi Moore: Rumer, 20, Scout, 17, and Tallulah Belle, 14, as well as Moore, and her husband, actor Ashton Kutcher.
The couple plan a civil ceremony when they return to California.
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