One Direction unveil teaser trailer

One Direction have released a teaser trailer for This Is Us.

The fly-on-the-wall documentary follows the lives of boyband members Harry Styles, Liam Payne, Louis Tomlinson, Niall Horan and Zayn Malik.

With the August release date fast approaching, the lads have now given fans a taste of what's to come.

The new trailer premiered today and shows the guys touring and having fun.

"When you come somewhere completely new it's really exciting," they say in the video, before showing a clip of the band at a Japanese airport and being greeted by dressed up 'Harajuku' girls.

The boys are then seen discussing what Miso soup is before launching into a debate over how you consume it.

"You drink it!" Zayn laughs.

There are even a few cheeky topless shots of 20-year-old Zayn and bandmate Liam which are guaranteed to excite their fans.

One Direction's curly-haired lothario Harry even visits the bakery where he used to work and greets his elderly lady friend Barbara.

"She's the one who used to pinch my bum on a Saturday!" he teases her.

There are also shots of the band camping together and sitting around a fire as they share jokes.

The five guys explain how great it is to work together.

"As a group you've always got people to share experiences with," they gush at the end of the clip.

The movie is directed by Morgan Spurlock and will hit cinemas from August 28.