LOS ANGELES:- Heather Menzies-Urich, a star of The Sound of Music,” which continues to win hearts worldwide after more than half a century, died at age 68, an industry source said Monday. “We... mourn the passing of Heather Menzies-Urich,” the Rodgers and Hammerstein Organization, which holds the rights to the musical, said on its website. “We are all lucky to have known her, and she will happily live on in that beautiful movie. We will miss her.” Menzies-Urich, then a teenager, had the role of Louisa von Trapp, one of the children of Captain von Trapp played by Canadian actor Christopher Plummer, who starred with English actress Julie Andrews.