"I am not used to commenting on things like this nor taking them seriously but as this situation is spiraling and affecting people I love, I have to speak up," Cotillard wrote in an Instagram post Wednesday.
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Pitt's "Allied" co-star then revealed the news that she is expecting a second child with longtime partner Guillaume Canet, father of her 5-year-old son.
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"Firstly, many years ago, I met the man of my life, father of our son and of the baby we are expecting," she wrote. "He is my love, my best friend, the only one that I need."
Cotillard went on to slam the media and critics.
"Secondly to those who have indicated that I am devastated, I am very well thank you. This crafted conversation isn't distressing," she wrote.
"And to all the media and the haters who are quick to pass judgment, I sincerely wish you a swift recovery."
She ended the post by wishing "that Angelina and Brad, both whom I deeply respect, will find peace in this very tumultuous moment."
>> Read the entire post here