Brad told People, "I am very saddened by this, but what matters most now is the well-being of our kids, I kindly ask the press to give them the space they deserve during this challenging time."
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TMZ also reported the filmmaker and humanitarian had a conflict with Brad over the kids leading to their getting a divorce.
Sources say Angelina's decision to file has to do with the way Brad was parenting the children. According to them she was extremely upset with his methods of parenting.
Meanwhile, other sources say Brad Pitt's "Allied" co-star, Marion Cotillard might be the cause.
This will be Angelina's third failed marriage as the star was previously married to Jonny Lee Miller in 1996 and then broke things off in 1999. She hooked up with Billy Bob Thornton in 2000 the couple then went their separate ways in 2003 and now she's leaving Brad Pitt.
Brad Pitt on the other hand was married to actress Jennifer Aniston between 2000 to 2005.