Groomed for stardom by "X-Factor's" Simon Cowell, the members of pop supergroup One Direction -- Niall Horan, Zayn Malik, Harry Styles, Louis Tomlinson and Liam Payne -- have emerged as a worldwide phenomenon. Filmmaker Morgan Spurlock follows the young singers on their 2012-2013 world tour and mixes live concert footage with behind-the-scenes interviews and antics. Soccer player Cristiano Ronaldo, actor-comic Chris Rock and filmmaker Martin Scorsese also drop by to meet the guys.
