Cue the girlish screams. A "One Direction 3D" movie teaser trailer has arrived. Directed by Morgan Spurlock ("Supersize Me"), the film promises the experience of touring with the boy band. With behind-the-scenes shots of the guys palling around, dining out and onstage moments, it's must-see documentary for every Directioner. Take a look at the teaser above. The film hits theaters August 30.