Brad Pitt and Marion Cotillard are magnetic on screen as married assassins in new Allied trailer... after on-set romance rumors shot down

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The first promo clip for Brad Pitt's new film Allied dropped the day Angelina Jolie filed for divorce from the Hollywood star.

The drama coupled with her undeniable on-screen chemistry with Pitt forced his co-star Marion Cotillard to issue a statement categorically denying that she was in anyway romantically involved with the actor or had played any part in his split from Jolie.

And while the shock divorce proceedings continue, Paramount has forged ahead with the release of the first official full-length trailer for the World War Two spy thriller that is set to hit movie theatres on November 23.

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Brad Pitt and Marion Cotillard engage in a steamy love affair during World War Two in the spy thriller Allied 

The chemistry between the two stars is palpable in the new full-length trailer released by Paramount on Wednesday

The first thing that strikes the viewer is a similarity between this action-packed romance and the one played out by Pitt and Jolie in 2005's Mr. & Mrs. Smith, which as everyone knows is when the A-listers fell in love with each other. 

The plot revolves around a husband and wife who are both expert assassins and who, it turns out, may or may not be hiding deep secrets from the other.

The trailer for Allied opens with Cotillard, in a silky evening gown, walking towards an open door.

The trailer opens with French actress Cotillard walking towards an open door in a silky evening gown

The action then switches to a swanky party where she is seen exchanging meaningful glances with Pitt

The two are at a reception for a German ambassador in Casablanca in 1942

As an outside explosion serves as a distraction, Pitt pulls out a machine gun from under an overturned table 

Cotillard also has a weapon and knows how to use it

She's then seen with Pitt, dressed in a tuxedo, who hands her a glass of champagne as a Nazi bigwig strides out onto a balcony above them to address the gathering.

A ticking clock is followed by a large explosion outside at which point the two stars toss over the table of champagne and glasses to reveal machine guns tap[ed to the underneath, that they then use to assassinate the German ambassador and his cohorts.

It transpires that Pitt is a secret intelligence officer and Cotillard is a member of the French Resistance who have teamed up to carry out the politically-motivated hit in Casablanca in 1942.

It turns out that Cotillard is a member of the French Resistance and Pitt is an intelligence officer. The two highly-trained operatives teamed up to assassinate the German ambassador

Cotillard may be a crack shot; she's also a very attractive woman 

Pitt asks Cotillard to return with him to London and be his wife

She accepts and the two are married

Soon, the two clearly start falling for each other.

'You're beautiful and good,' Pitt tells her.

'Being good at this kind of work is not very beautiful,' Cotillard replies.

The trailer cuts to a steamy encounter in a car in which the two kiss passionately.

In voiceover, Pitt is heard saying: 'When the war is over, come with me to London. Come with me and be my wife.' 

The two are then seen laughing as Pitt carries his new wife into their wedding reception and they're showered with confetti.

The couple settle down to a life of wedded bliss in wartime London

For a while, their pasts are behind them as they build a future together

Cotillard is soon pregnant and gives birth to a daughter

It seems they are living a perfect life as a family despite the ongoing war around them

 Cotillard gets pregnant and gives birth to a daughter and the happy family is seen picnicking in a park.

Then air raid sirens sound and the action switches to some kind of underground bunker where Pitt is faced with Jared Harris explaining to him that the intelligence service believes his wife may be a Nazi spy.

'This is insane,' a disbelieving Pitt says.

'If you are right, then all this will be forgotten,' Harris tells him.

But if she is, you will execute her with your own hand and if you do not comply, you'll be hanged.'

Then Pitt is called into an underground bunker where a military officer, played by Jared Harris, tells him that they suspect his wife is a Nazi spy

Pitt is in disbelief but he's ordered that if Cotillard is revealed to be a spy, and the truth will be known within 72 hours, he must assassinate her himself.... or he will be hanged

Pitt is shell-shocked by the revelations

Pitt is told the truth about his wife will be known within 72 hours.

The action then focuses on Pitt's interaction with Cotillard who realizes something is up, and whether he will put love before loyalty. 

Directed by Robert Zemeckis, the film also stars Matthew Goode, Lizzy Caplan, Charlotte Hope and August Diehl. 

Allied is released in the US on November 23 and in the UK on November 25. 

Everything between them is different now......

Cotillard knows something is wrong and that her husband's attitude to her has changed

Pitt is torn between love and loyalty

How will it all end? Allied opens in movie theatres on November 23