It may become the biggest divorce payout in Hollywood history. The divorce settlement between Mel Gibson and his wife of around 30 years, Robyn Denise Moore, has been finalized last Friday in a Los Angeles courtroom. 　　According to sources, the couple did not have a prenuptial agreement, meaning that his ex-wife, the mother of their seven children, would be entitled to half of what Gibson earned during their marriage, as well as any future checks he gets from film residuals. 　　The Oscar-winner's fortune has been estimated to be as high as 850 million U.S. dollars at one point, by the Los Angeles Business Journal in 2006. 　　Gibson's real estate investments worldwide are worth more than 100 million U.S. dollars, which include an island in Fiji he bought for 15 million in 2005. 　　The 55-year-old star also took home more than 600 million dollars from the movie, "The Passion of the Christ", and 75 million U.S. dollars from other on screen projects.(Courtesy: Summit Entertainment)