Live stream: One Direction: This Is Us premiere in London

One Direction fans gather in Leicester Square ahead of the premiere of Morgan Spurlock's documentary This Is Us. (Getty Images)

Watch the pandemonium unfold in London's Leicester Square when Harry, Zayn, Louis, Niall and Liam arrive to promote behind-the-scenes documentary One Direction: This Is Us.

The live stream will begin at 5.30pm and the event is due to last 45 minutes, after which a VOD of the action will replace the stream (above).