As with any highly-publicized Hollywood split, stories of what went wrong and accusations of infidelity always seem to be fired up in the rumor mills and for Brad Pitt and Angelina Jolie it's no different.
Right after Jolie filed for divorce, several media outlets reported that the split in which she cited "irreconcilable differences" and TMZ noted was due to the Pitt's parenting style, was really over an extramarital affair.
That affair is said to have been with actress Marion Cotillard, who is Pitt's co-star in the film Allied.
These claims have continued to gain steam even after Pitt and Jolie publicly said that their split has nothing to do with a "third person."
One reason the rumor mill could have started turning so quickly is because of Pitt's past of allegedly cheating with a beautiful co-star while still married to a beautiful wife. However, in this instance Cotillard and her partner, Guillaume Canet, aren't too pleased with such gossip.
"Marion and Guillaume are blissfully happy, and these kind of claims are not what Marion wants to be hearing," a source close to the French actress told the Mirror.
The truth is only Brad and Angelina know what really went wrong in their marriage and unless they decide to someday share that private information with the public, we may never know why it came to an end.