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Mel Gibson separated from Robin, his wife of 26 years, in 2006. The pair remained legally married until April 2009, just weeks after pictures surfaced of Gibson in a compromising position with Oksana Grigorieva. Grigorieva gave birth to Gibson’s eighth child in October of this same year, meaning she was already knocked up while Gibson was still married. That makes him a cheater in our books!
Photo: Large image: FilmMagic, Insert: Getty Images
