1D were super-cute in their younger years

The One Direction lads appear as cherubic youngsters in the full-length trailer for their 3D documentary movie This Is Us.

Harry Styles, Zayn Malik, Louis Tomlinson, Liam Payne and Niall Horan have all shared adorable baby snaps of themselves for the film, which is set to be released in August.

Curly-haired heartthrob Harry, 19, shows off a straighter ‘do in his childhood pictures.

He wears a pair of dark sunglasses and pulls a thumbs up sign in one, while another shows him looking super-cute with a blond bowl cut.

Louis, 21, cracks a big grin in his primary school uniform – complete with red hat – and a tattoo-free Zayn, 20, strikes a model-esque pose by putting his hand on his chin.

Liam and Niall, both 19, prove they’ve always had pop star credentials with sweet photos showing them sing into microphones.

The boys speak about how much they’ve always wanted to perform in the three-minute long clip.

‘When I was little I knew I wanted to entertain people,’ says Harry.

Niall recalls: ‘I used to get kicked out of class for singing traditional Irish songs.’

Watch the trailer for One Direction‘s film This Is Us

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Anna Duff

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