Hanna Kastner (L) and Sebastian Smulders

Hanna Kastner (L) and Sebastian Smulders respectively portraying Liesel and Rolf Gruber perform during a rehearsal of "The Sound of Music" musical, in Salzburg, Austria, on October 19, 2011. "The Sound of Music," the musical made world famous by the 1965 film starring Julie Andrews, has never been performed in the picture-postcard Austrian city of Salzburg where it is set. But on Sunday this will change as the Salzburg State Theatre premieres a sell-out German-language version of the feel-good Rodgers and Hammerstein story of the singing-and-dancing von Trapp family on the eve of World War II. The theatre's musical director Carl Philip von Maldeghem told AFP that he first became aware of the musical's huge popularity outside Austria and his native Germany as an exchange student in the United States. AFP PHOTO / Wildbild (Photo credit should read Wildbild/AFP via Getty Images)