Los Angeles - Actor Sean Penn and his wife Robin's rocky marriage is headed for divorce for the third time.

This time it's the actress who filed for divorce last week in northern California citing irreconcilable differences, People magazine said on Tuesday.

The papers obtained by the magazine said Robin Wright Penn, 43, and her husband had agreed to share custody of their 16-year-old son Hopper Jack and divide their property.

In an interview in the September edition of More magazine, Wright Penn said she did not plan to reconcile again. 'I hit that crossroad a while ago. I have no regrets. I, we, have two amazing children we raised together,' she added. Their older child Dylan Frances is 18.

The couple, who married in 1996, first started divorce proceedings in December 2007 but got back together a few months later and withdrew the petition.

Sean Penn, 49, filed for a legal separation earlier this year but withdrew the request in May, calling his first action 'an arrogant mistake'.