One Direction movie to be helmed by Supersize Me filmmaker

3D film about the band's exploits has snagged itself the most unlikely director

A feature-length 3D film about One Direction is to be directed by the man behind hit documentary 'Supersize Me'.

According to the Hollywood Reporter, filmmaker Morgan Spurlock is to helm the behind-the scenes film.

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One Direction... 3D film in the pipeline (Copyright: Rex)

Spurlock was also behind 'The Greatest Movie Ever Sold', which looked into the world of product placement, and 'Comic-Con Episode IV: A Fan's Hope', about the San Diego film and comic book conference.

He also directed 'Mansome', a documentary about modern masculinity featuring the likes of Paul Rudd, Jason Bateman, Will Arnett, Zach Galifianakis and Judd Apatow.

Spurlock became most famous, however, following 'Supersize Me', in which he dissected the US fast food industry while existing on a diet of only McDonald's for an entire month.

He's still a most unusual choice of a director for a film on the former 'X Factor' boyband, who have gone on to take the US charts by storm.

According to reports, the film will comprise live footage of the band performing, alongside 'scenes of musician life' which 'purports to give fans a glimpse into the real artists'.

It is set for release on August 30, 2013.