(Getty Images)

(Getty Images)

SAN FRANCISCO -- Robin Wright and her husband Sean Penn are calling it quits on their more than decade-long marriage.

People magazine reports that Wright filed for divorce from Penn Aug. 12 in Marin County, Calif.

The magazine says the couple, which has had a tumultuous relationship, have agreed to share custody of their 16-year-old son, Hopper Jack.

Court papers cite "irreconcilable differences" for the split.

A representative for Wright did not return an e-mail seeking comment.

The couple married in April 1996.

The Penns have twice before filed for divorce or separation only to dismiss their petition a short time later.

Sean Penn won an Oscar for his role in "Milk" at the Academy Awards in February, but did not thank his wife in his acceptance speech.