Brad Pitt and Angelina Jolie are reportedly headed for divorce following news of an alleged affair between Pitt and his Five Seconds of Silence co-star, Marion Cotillard.

According to recent reports, Pitt and Cotillard got super cozy on set and are suspected of having a secret affair behind the back of Pitt's wife, Jolie.

“There is totally something going on between [Brad and Marion],” an insider told Star magazine of 52-year-old Pitt and the French actress, 40, via Hollywood Life. “They had insane chemistry right from the start, and many crewmembers believe they’ve been acting on it in private.”

As for what led up to Pitt's rumored affair with Cotillard, rumors have been swirling for months about his reported separation and impending divorce from Jolie.

In January, a source told In Touch Weekly magazine, via Hollywood Life, that Pitt and Jolie had “been living separate lives” after experiencing marital problems for over a year, starting with a "series of relationship-ending fights” over the Christmas holiday.

Pitt “feels like she doesn’t listen,” according to the insider, “so he’s given up.”

“Dedicating their lives to film work, human rights and their children left them little time for each other,” the source explained. “Their alone time [has] dissolved into a tense negotiation over how they’ll keep the family going after the divorce.”

Meanwhile, as Star's source claimed, Pitt is getting attached to Cotillard as they continue to film Five Seconds of Silence in London.

“In the past, Brad and Angie have always turned a blind eye to each other’s little flirtations. As long as neither of them took it too far, they thought it actually spiced up their relationship,” the insider added. “But Brad getting emotionally attached to Marion is totally against the rules. That’s what makes this a unique situation that could threaten their marriage.”

In response to news of her husband's alleged affair, Jolie is said to be wasting away, weighing just 79 pounds at the age of 40.