Mel Gibson and Robyn Moore: $425M
Mel Gibson's divorce from his wife of 31 years, Robyn Moore, cost the actor an extremely pretty penny. Gibson reportedly handed over half of his estimated $850 million fortune when the divorce was finalized in January of 2011. Moore, who shares seven children with Gibson, filed for divorce in 2009 after it was discovered that Gibson had been having an affair with Oksana Grigorieva. —XFINITY Entertainment Staff (Photo by Alberto E. Rodriguez/Getty Images)
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