LOS ANGELES - Court records show Mel Gibson's wife has filed for divorce after 28 years of marriage.
Robyn Gibson filed the petition in Los Angeles , citing irreconcilable differences .
The petition doesn't give any details about the split. Robyn Gibson is seeking jewelry and some other property, and has suggested joint custody for their 9-year-old son.
The records show that the couple were married in June 1980.
An e-mail message sent to Gibson's publicist Monday wasn't immediately returned.