One Direction (1D) stunned the entertainment press and photogs when they decided to suddenly throw all their popcorn at the unsuspecting group. 1D was in London promoting their new movie "This Is Us" with Director Morgan Spurlock. Harry Styles and other band members Zayn Malik, Louis Tomlinson, Liam Payne, Niall Horan also sat down and talked about the behind the scenes concert movie.