Robin Wright Penn files for divorce

Robin Wright Penn has filed for divorce from her husband Sean Penn, PEOPLE has learned. The papers, filed in Marin County, California, on August 12, state that “both parties have already agreed to [shared] custody” over their minor son, Hopper Jack, 16, and that “the estranged couple have already agreed to division of all property.” The reason for the split is listed as “irreconcilable differences.” Wright Penn, best known for roles in “The Princess Bride” and “Forrest Gump,” is not seeking spousal support.