Brit-winning stars One Direction have revealed that the film crew for their new movie follow them everywhere – even to the loo.

The boy band – Niall Horan, Zayn Malik, Liam Payne, Harry Styles and Louis Tomlinson – are in the midst of making a 3D movie with the director of Supersize Me, Morgan Spurlock.

Horan – speaking at the Brit awards – said: "It's going to be very access all areas."