Aww, nothing's cuter than watching A-list actors play happy families, even if they are in costume and it's just for show.

Brad Pitt and Marion Cotillard were decked out in 1940s finery as they filmed scenes for Five Seconds of Silence on London's Hampstead Heath.

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Brad Pitt and Marion Cotillard filming Five Seconds of Silence in Londonpinterest
Beretta / Sims//ELLEMEN

As well as carrying a picnic basket, the pair also accessorised with a baby. We're assuming they are playing a happy family in the upcoming drama and we have to say, they do look good together.

Set in 1942, Robert Zemekis's new movie is about an allied counter intelligence agent who falls in love during a dangerous mission.

Brad Pitt and Marion Cotillard filming Five Seconds of Silence in Londonpinterest
Beretta / Sims//ELLEMEN

Sounds heavy but very, very gripping. No wonder they got Marion – best known for dramatic roles from Macbeth to her Oscar-winning appearance in La vie en rose in for some much-needed intensity. 

Away from the film set, Pitt was spotted hitting up B&Q over the Bank Holiday weekend whilst in London. Obviously.