LONDON, ENGLAND - AUGUST 20: One Direction fans take their positions in Leicester Square ahead of the premier to the bands new film on August 20, 2013 in London, England. The bands new film, 'This Is Us', will premier this evening at the Empire cinema. (Photo by Dan Kitwood/Getty Images) *** Local Caption *** 176969059.jpg
One Direction fans wear masks of band members while they wait to catch a glimpse of the real group. Dan Kitwood / Getty Images
A One Direction fan take her position in Leicester Square ahead of the premiere. Dan Kitwood / Getty Images
Fans camped out in Leicester Square ahead of the premiere to One Direction's film 'This Is Us'. Dan Kitwood / Getty Images
One Direction fans in Leicester Square ahead of the premiere to the bands new film. Dan Kitwood / Getty Images
One Direction, from left, Harry Styles, Niall Horan, Louis Tomlinson, Zayn Malik and Liam Payne attend the world premiere of their film, 'One Direction: This Is Us'. Andrew Cowie / AFP
One Direction were put together in 2010 during the television singing competition "The X Factor". They came third in the public vote but the show's mogul Simon Cowell signed them up and they have gone on to become global superstars. Andrew Cowie / AFP
Fans hold up dolls of the British boyband. Andrew Cowie / AFP
Fans of group One direction, display messages for Harry Styles, ahead of the UK Premiere of One Direction: This Is Us. Jonathan Short / Invision / AP
Morgan Spurlock, the director of One Direction: This Is Us 3D arrives at the world premiere. Jonathan Short / Invision / AP
Boyband McFly attend the UK Premiere of One Direction: This Is Us 3D. Jon Furniss / Invision / AP Images
Ronnie Wood and Sally Humphreys attend the UK Premiere of 'One Direction: This Is Us 3D. Jon Furniss / Invision / AP Images
Harry Styles signs autographs at the UK Premiere of One Direction: This Is Us 3D. Jon Furniss / Invision / AP Images
Harry Styles of the music group One Direction poses for photographers. Suzanne Plunkett / Reuters
In pictures: One Direction: This Is Us premiere in London