Mel Gibson's wife has lost her "passion" for their marriage of 28 years.
According to the documents found on the gossip site, Robyn Gibson is seeking joint physical and legal custody of their son Tom, 10, their only child who is a minor. She is also seeking attorney fees and spousal support. Sources say the couple did not sign a prenup.
The couple, who had married in June 1980, has a total of seven children besides Tom: daughter Hannah, twins Edward and Christian, William, Louis and Milo.
Rumor has it that the marriage has been under strain since his 2006 arrest for drunk driving.
RadarOnline.com, however, is pointing the finger at a Russian musician named Oksana. She and Gibson were seen embracing and kissing in early March in Costa Rica.