Brad Pitt & Angelina Jolie — Their Dirty Divorce Secrets

Angelina Jolie has filed for divorce from Brad Pitt — citing “irreconcilable differences” and demanding sole physical custody of their six children! It's the final tragic twist to one of showbiz's most troubled marriages. Amazingly, the two stars still repeatedly posed as a happy Hollywood couple, but The National ENQUIRER had the scoop on the impending split over six months ago!

The ENQUIRER obtained the secret divorce papers that were first assembled after Brad and Angelina had an epic marital fight on Dec. 5, 2015. Sources claimed that Brad had jetted to Cambodia to confront Angie while she was directing the Khmer rouge epic “First They Killed my Father.”

The star had flipped out after The ENQUIRER published spy photos of Angie, 40, flirting with a hunky crew member on the film’s set. “Brad was red hot! He’d thought about those pictures the whole way over on the plane,” a source revealed. “He wanted to know who this guy was! But Angie fired back about him carousing with a mystery blonde and other women while he was filming in Germany recently."

"It turned into a vicious fight with them both accusing the other," said the souce. "Brad finally stormed out!” Six days later, Angie left the country with the couple’s four oldest children. “Angie was clearly upset,” said an eyewitness. “She had a hat pulled down over her head.”

Brad and Angie share three adopted children — maddox, 14, Pax, 12, and Zahara, 10 — and biological children Shiloh, 9, and 7-year-old twins Knox and Vivienne. Celebrity divorce attorney Raoul Felder, who is not involved with the couple, told The ENQUIRER: “They have so many financial interests, together and apart, that it could be like two corporations splitting up!”

He added: “Then, what about all their kids? “It would take a team of lawyers and accountants, as well as years, to untangle! There’s almost a half-billion dollars at stake!” On top of that, their marriage secrets — which the two have kept closely guarded — could explode in divorce court. One published report questioned whether Angie punched Brad when he was photographed with an ugly shiner last April.

Brad blamed the black eye on an awkward fall, but Angelina recently stated to a reporter: “To be clear: we have fights ... we drive each other absolutely mad.” The two also allegedly battled over claims that Brad’s into sex with men.

“I don’t want to define Brad Pitt’s sexuality,” said pop artist and Hollywood insider Hesham “Sham” Ibrahim. “but whatever it is, he’s into guys.” The ENQUIRER has also that Brad’s complained of sexless nights with Angie, and the “Salt” beauty once admitted that she was in love with her children’s sultry nanny.

The ENQUIRER has also had the scoop about Brad's repeated vows to break up their marriage over Angelina's health — with frail Angelina prompting several reports of anorexia scares! Added one source: “It’s pretty clear that it’s going to be ugly!”