Mel Gibson and Robyn Moore, 1980
Mel Gibson is a household name to this day, but back in the eighties, he was one of the biggest stars in America. Moore, a successful voice-over artist, met fellow Aussie Mel Gibson in 1970, when he was a struggling actor waiting for his big break. Over the next couple of years, their relationship bloomed, and they wed in 1980.
The union between these two lasted for three decades, but sadly came to an end in 2009 in one of the highest divorce payouts in Hollywood history at the time. No real reason was given to the press for this breakup, although Mel was spotted at the beach with another woman when the divorce papers were filed.