After viewing The Trapp Family, a 1956 German film about the von Trapp family, and its 1958 sequel, The Trapp Family in America (Die Trapp-Familie in Amerika), stage director Vincent J. Donehue thought that the project would be perfect for his friend Mary Martin; Broadway producers Leland Hayward and Richard Halliday (Martin's husband) agreed. The producers originally envisioned a nonmusical play that would be written by Lindsay and Crouse and that would feature songs from the repertoire of the Trapp Family Singers. Then they decided to add an original song or two, perhaps by Rodgers and Hammerstein. But it was soon agreed that the project should feature all new songs and be a musical rather than a play.
Details of the history of the von Trapp family were altered for the musical. Georg Ludwig von Trapp lived with his family in a villa in Aigen, a suburb of Salzburg. The real Maria von Trappwas sent to be a tutor to one of the children, not a governess to all of them. The Captain's oldest child was a boy, not a girl, and the names of the children were changed (at least partly to avoid confusion: the Captain's second eldest daughter, the third of the seven, was also called Maria). The von Trapps spent some years in Austria after Maria and the Captain married – they did not have to flee right away – and they fled to Italy, not Switzerland. Maria von Trapp is said to have been unhappy with the movie's portrayal of her husband as having been cold and stern prior to her arrival, which she and their children strongly dispute.
During the Cold War, the BBC planned to broadcast The Sound of Music on radio in the event of a nuclear strike on the United Kingdom. The broadcast would be part of an emergency timetable of programs designed to "reassure" the public in the aftermath of the attack.
Alright, You can get more info by googling or wiki it.
That's all now, off preparing for my sat's paper. Urgg!