Angelina Jolie and Brad Pitt's son Maddox to officially change surname.

On Thursday, editors at TMZ reported that the 24-year-old had filed paperwork to legally drop "Pitt" from his name. According to the outlet, Maddox wants to be known as "Maddox Chivan Jolie" going forward. It's unclear how long a ruling on the request will take. Angelina adopted Maddox from an orphanage in Cambodia when he was seven months old in March 2002, and three years later, also adopted daughter Zahara, 21, from Ethiopia. But when Angelina and Brad started a relationship, the F1 actor announced his intention to adopt her two children…