Reason behind Brad Pitt-Angelina Jolie divorce Hollywood actress Marion Cotillard?

Hollywood's favourite couple is splitting up! Could Marion Cotillard announcing her pregnancy have led to the break?

Reason behind Brad Pitt-Angelina Jolie divorce Hollywood actress Marion Cotillard?

Angelina Jolie and Brad Pitt

Angelina Jolie filed for divorce from Brad Pitt, 52,  after finding out that he was cheating on her with his hot co-star, Marion Cotillard a source told The Post.

“She hired a private eye because she felt that he was fooling around with her on the set, and it turns out, he was. And that was the final straw,’’ the source confirmed.

Brad Pitt had been rumored to have been intimate with his co-star Marion Cotillard, 40, during the duo’s filming of the World War II film in London.

The PI uncovered that Pitt was cheating on his wife with Cotillard and was also partying like a single guy on a mission, says the source.

[caption id="" align="alignnone" width="541"]Marion and Brad movie still Marion and Brad movie still[/caption]

“The atmosphere [off-set] was full of hard drugs and Russian hookers, and Angie was told Brad got caught up in it,’’ the source added.

“He’s in the throes of some insane midlife crisis, and Angie is fed up.”

But a source close to Cotillard denies the affair rumors and says that she is still with the French actor and director Guillaume Canet who happens to be her long-term partner.

“They are still very much together. They have been a couple since 2007 and have one child but never married,’’ the source said of Cotillard and Canet.

It is not yet confirmed that Cotillard is pregnant with Canet.

Angelina’s manager, Geyer Kosinski, said to E! News, “Angelina will always do what’s in the best interest to protect her children."

"She appreciates everyone’s understanding of their need for privacy at this time."

Pitt added in a statement to 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.”

Well, it is understood that Angelina is obtaining the physical custody of their six children and asking the judge to give Pitt the visitation rights. Her lawyer said the settlement was made "for the health of the family".