• Maddox Jolie-Pitt testified against dad Brad Pitt in the actor and Angelina Jolie's ongoing custody dispute, a report says
  • Maddox's testimony was reportedly "not very flattering" toward Pitt
  • The report said their eldest son no longer uses Pitt as his last name on documents that aren't legal 

Angelina Jolie and Brad Pitt's eldest son, Maddox Jolie-Pitt, is already involved in their custody battle, according to a report.

Jolie, 45, and Pitt, 57, called it quits in 2016, but their custody battle is still ongoing four years later. Now, an unnamed Us Weekly insider said that Maddox, 19, testified against his dad during the exes' custody battle.

"Maddox has already given testimony as [an] adult in the ongoing custody dispute and it wasn’t very flattering toward Brad," the source told Us Weekly.

"He doesn’t use Pitt as his last name on documents that aren’t legal and instead uses Jolie," the insider continued. "Maddox wants to legally change his last name to Jolie, which Angelina has said she doesn’t support."

The report comes after Jolie filed new court documents Friday accusing Pitt of domestic violence. The documents stated that along with Jolie, their six children, Maddox, Pax, 17, Zahara, 16, Shiloh, 14, and 12-year-old twins Knox and Vivienne, are willing to provide "proof and authority in support" of their mom's claims against Pitt.

In 2016, Pitt was accused of alleged child abuse following an altercation with Maddox, then-15, aboard a private jet. The Los Angeles Police Department and Los Angeles County Department of Children and Family Services were notified, and a formal investigation was launched.

Pitt was cleared of child abuse allegations in November 2016 following the investigation.

"The Los Angeles Department of Children and Family Services cleared him of any child abuse allegations almost immediately," an unnamed insider told Us Weekly. "The case remained open out of an abundance of caution because the department took the matter seriously, and in the almost two years of monitored visitation, there was not one instance that caused any alarm bells to go off."

Meanwhile, an unnamed insider "close to Pitt" told the outlet earlier this week that Jolie's new filing was her way of getting back at her ex-husband and that the document leak was purposely "done to hurt" the actor.

"Over the past four-and-a-half years, there have been a number of claims made by Angelina that have been reviewed and not substantiated," the insider said. "The children have been used by Angelina to hurt Brad before and this is more of that behavior. This leaking of documents by her fourth or fifth set of lawyers has been done to hurt Brad."

Jolie filed for divorce from Pitt in September 2016 after two years of marriage. The two were declared legally single in April 2019, but their divorce proceedings are ongoing.

Angelina Jolie
TOKYO, JAPAN - OCTOBER 03: Angelina Jolie (R) and son Maddox Jolie-Pitt attend the Japan premiere of 'Maleficent: Mistress of Evil' on October 03, 2019 in Tokyo, Japan. Christopher Jue/Getty Images for Disney