Documentary about the remarkable transformation of Kate Middleton, the seemingly ordinary young woman now destined to be Queen of the United Kingdom and 15 other realms. From comparatively modest circumstances, the Middleton family could not be more different from the royal family. Yet this is exactly what Prince William wanted - a royal life combined with comfortable marital stability and a continuation of the easier relationship with the British people that was started by his mother, Princess Diana. The couple met at St Andrew's University in 2001 and after several ups and downs were married at Westminster Abbey in 2011, watched by an estimated 300 million people around the world. Featuring interviews with royal commentators Sir Anthony Seldon, Ferdinand Mount, Catherine Mayer, Emily Nash, Katie Nichol and Sarah Bradford.