Published: 14:12 BST, 21 September 2016 | Updated: 20:56 BST, 22 September 2016
A French magazine claims that Marion Cotillard is pregnant with her second child, amid rumours that a jealous Angelina Jolie refused to talk to her when she was on set with Brad Pitt.
The news comes after the French actress was said to be 'absolutely devastated' by reports claiming there was more than onscreen chemistry between herself and Brad, 52, while filming their movie, Allied.
Closer claim the 40-year-old is due to give birth in December.
Marion has been in a committed relationship with actor and director Guillaume Canet, 43, for almost a decade and they are parents to five-year-old son Marcel.
Scroll down for video
Is Marion Cotillard pregnant? French magazine claims the actress is expecting her second child, after she was dragged into Brad Pitt and Angelina Jolie's divorce
This would mean that Marion would likely have conceived in March, when she and Brad were filming together, although there is nothing whatsoever to suggest the timing was significant or that he is involved.
MailOnline has contacted a representative for Marion Cotillard for comment.
According to The Mirror, a source said: 'Marion and Guillaume are blissfully happy, and these kind of claims are not what Marion wants to be hearing.
Love: Marion has been in a committed relationship with actor and director Guillaume Canet, 43, for almost a decade and they are parents to five-year-old son Marcel
Recently sighted: Marion was pictured at the It's Not The End Of The World premiere in Paris on the day the divorce news broke
'Everyone in Paris is reporting that Marion is having another baby, and she looks absolutely blooming right now.
'Rumours that she's now cheating on Guillaume with Brad will leave her absolutely devastated. This doesn't sound like her at all.'
X17 report that Angelina struggled with the close bond between the star and her husband as they filmed the blockbuster.
All over: Angelina Jolie filed for divorce from Brad Pitt on September 15 and Marion was said to be 'devastated' at having her name mentioned in reports
'Angie couldn't handle Brad's sex scenes with Marion. Her jealousy was out of control.
'Brad tried for months to reassure her and calm her anxiety, but it simply didn't work. She said her intuition was telling her he was cheating.'
'Angie has struggled with insecurity over Brad's fidelity for years, but she was never as jealous over a co-star as she was with Marion. She was always paranoid Brad would do to her the same thing he did to Jen.'
Meanwhile, a brand new trailer for Allied was unveiled on Tuesday just hours after the shock announcement about the divorce.
Mum to be? If Marion is pregnant, she would likely have conceived in March, when she and Brad were filming Allied (pictured), although there is nothing whatsoever to suggest he is involved
Well-timed: Cotillard stars alongside Pitt in the upcoming spy thriller Allied and their onscreen sexual chemistry has been described as 'electric'
The one minute clip features the actor getting hot and heavy with co-star Marion.
Whether pure coincidence or cynically opportunistic marketing, studio Paramount are unlikely to be upset at the attention suddenly being shone on the romantic war thriller, set for release in November.
Marion gave birth to her first son while still working extremely hard at her career, but she has recently indicated that she wants a ‘quieter life’, a source told MailOnline.
Make-up free: Marion was pictured two days ago at an ecological event for the protection of nature Ocean Climax at the Darwin Center in Bordeaux, France
Stunning: She wore a blue dress and Stan Smith trainers for her day out
‘She enjoys her family time and wants to enjoy more of it,’ said the source. ‘All this fuss will be a huge shock to her.’
Cotillard stars alongside Pitt in the upcoming spy thriller Allied and their onscreen sexual chemistry has been described as 'electric'.
According to the film's producer, Graham King, Pitt and Cotillard had an immediate connection.
'Brad and Marion immediately had the utmost respect for each other, so once they delved into their characters, their chemistry was electric,' he told People Magazine back in August.
Custody battle? Angelina has requested physical custody of their six children
'It was crucial for Brad and Marion to not only begin rehearsing together before the shoot, but they also spent a lot of time developing their characters with the director, Robert Zemeckis,' he added.
'By the time we got to set, it was really amazing to see these characters already feel lived-in and real.'
The pair play a information officer and French Resistance fighter who fall in love. They began filming the movie in England in February this year and also travelled to Casablanca and the Canary Islands for shoots.
The shock allegations of an affair, reported by Page Six, are reminiscent of Angelina and Brad's own love story; they met and 'fell in love' on the set of the 2005 spy film Mr and Mrs Smith while he was still married to Jennifer Aniston.
Cotillard, who turns 41 at the end of this month, has been hugely busy working on up four films this year, but has indicated in interviews that she wants to cut down on her frantic pace.
Oscar-winning Cotillard is one of the most successful actresses in recent French movie history, and has built up a multi-million pounds fortune.
Her greatest triumph to date was best actress Academy Award for her portrayal of French cabaret singer Edith Piaf in the 2007 film La Vie en Rose.
It meant Cotillard became the second actress to win an acting Oscar performing in a language other than English.
Hit film: Angelina an Brad played assassins hired by competing agencies to kill each other in romantic comedy Mr And Mrs Smith
Cotillard was born in Paris, and grew up just south of the French capital in Orleans.
Her first big showbiz relationship was with Julien Rassam, another actor, and between 2000 and 2005 she was Stephan Guerin-Tillie, another thespian who also works as a director.
Marion dated French singer Mathieu Blanc-Francard for two years up until 2007, when she started seeing Guillaume Canet.
The couple have never married, and Cotillard takes pride in calling Guillaume ‘my boyfriend’. Marcel was born on May 19th 2011.
Mutual admiration: Marion and Brad had the 'utmost respect for each other', according to the film's producer
Where it all began: Angelina told the New York Times in 2008 that she and Brad 'fell in love' while working on Mr. & Mrs. Smith
While Canet is relatively well know in France for his acting, directing and screenwriting, he has never been anything like as successful as Cotillard.
Still, they are often seen as France's answer to Brangelina in their home nation.
Marion has often described herself as someone who has never truly feeling like she fits in, telling The Guardian: 'I couldn't identify with anyone. At school I was considered very strange. I didn't understand the relationships between people.'
She also dedicated herself to her roles - so much so she had to get an exorcism once - but since having her child has changed her ways.
Head over heels: The trailer for the WWII drama shows Brad and Marion's characters falling for each other
Toast of Hollywood: Oscar-winning Cotillard is one of the most successful actresses in recent French movie history, and has built up a multi-million pounds fortune
She told The Guardian: 'Before my family, everything in my life was dedicated to the character. The more deeply affected I was by her, the closer I felt to her. But I cannot lock myself away in another world any more. I don't want it to affect my son when I'm in a weird state because I'm ''depressed'' or ''killing a king''.'
Jolie, who is being represented by celebrity divorce lawyer Laura Wasser, filed for divorce on Monday and list the date of separation as September 15.
TMZ reports that there was no third party involved in their split with the actress citing irreconcilable differences.
The actress is asking for physical custody of their six children - Maddox, Pax, Zahara, Shiloh, and twins Knox and Viviennne - with Brad to only have visitation and joint legal custody.
The couple were together ten years before they secretly married in 2014 at their Chateau Miraval in France surrounded by their children.
'Blissfully happy': The 40-year-old French star is in a relationship with fellow actor Guillaume Canet, 43, and they have one child together (Guillaume directed Marion in his first American film, Blood Ties, they are seen here at the premiere in 2013)