“She will not be commenting, and asks that the family be given its privacy at this time,” Offer added in a statement.
The couple have been together since 2004 but only married in August 2015.
Ms Jolie’s longtime manager Geyser Kosinski told E! Online: “Angelina will always do what’s in the best interest of taking care of her family.”
It was Pitt’s second marriage, having previously wed Friends star Jennifer Aniston, and Jolie’s third after Billy Bob Thornton and Jonny Lee Miller.
According TMZ , the divorce papers listed the date of separation as 15 September.
It is understood Jolie is seeking physical custody of the couple’s six children and is asking the judge to give Pitt visitation rights.
The couple have six children together – Maddox, Pax, Zahara, who are adopted, and biological children Shiloh and twins Knox and Vivienne.
Jolie and Pitt – nicknamed “Brangelina” by fans – are one of the best-known couples in Hollywood.
They got together after meeting on the set of the film Mr & Mrs Smith, which was released in 2005.
Pitt, 52, and Jolie, 41, married privately in the French hamlet of Correns in Provence in 2014.