Open Marriages: Hollywood’s Worst Kept Secret?
Jude Law and Sadie Frost

British actor Jude Law may be another celebrity prone to an open marriage. In the late ’90s, actress Sadie Frost met heartthrob Jude and even left her husband for him. The couple married in 1997 and had three children, but eventually split up by the early 2000s.
Then, Law began to date model Sienna Miller and the two almost married, if not for the fact that Miller caught Law cheating on her with his children’s nanny. After his split from Miller, Law reconciled with the mother of his children, Frost, and the two have reportedly “rebuilt their relationship after a very nasty split, and over time he’s proved to her that she and the kids will always be number one in his life.”