Maria Shriver Files for Divorce from Arnold Schwarzenegger

Citing "irreconcilable differences" as the reason for pulling the plug on their 25-year marriage, Shriver is seeking joint legal and physical custody of the couple's minor children, Patrick, 17, and Christopher, 13. (She and Schwarzenegger are also parents to 21-year-old Katherine and 19-year-old Christina.)

Also in the divorce documents -- filed by her attorney Laura Wasser -- Shriver asks for attorneys' fees and spousal support.

Schwarzenegger, 63, and Shriver, 55, secretly split earlier this year after his shocking admission: That the former California governor had fathered a child over ten years ago with a longtime member of the couple's household staff, housekeeper Mildred Baena; Shriver moved out of the family's Brentwood, L.A. home, and the couple announced their separation in early May.

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"I understand and deserve the feelings of anger and disappointment among my friends and family," the actor said in a statement. "There are no excuses and I take full responsibility for the hurt I have caused. I have apologized to Maria, my children and my family. I am truly sorry."