The best candidate for director Robert Wise to play Colonel von Trapp is. But U Brynner refused the invitation, and Christopher Plummer eventually played the role.
Because the filming cycle is relatively long, the young actors have grown a lot in the process. In order to make the actors look the same in the shots, the filming team used a lot of small shooting techniques to conceal all of this.
At the end of the film, Gerrit on the colonel's shoulder when the whole family climbed the mountain was not her. At that time, Kim Karas gained a lot of weight. The child in the film is a dwarf stand-in who was found at Christopher's request, weighing only half of Gerrit.
The film’s first music segment "The Sound of Music" was the last filmed in Europe. It was the end of June and the beginning of July in 1964. Although it seemed sunny, the weather was bitterly cold and Julie Andrews had to jump around in the mountains.
In the aerial footage at the beginning of the film, even though Julie Andrews had inserted the heels of her shoes into the ground and tried to stabilize herself, she was still unable to stand still due to the strong airflow of the helicopter. After taking about a dozen shots, she tried to gesture to the director Robert Wise to get the helicopter up, but the response she got was a thumbs up from the director, because the director finally took a satisfactory shot.
At the end of the film, the family walked across the Alps to Switzerland, but in reality they first took a train to Italy, then flew from Italy to London, and finally reached the United States. Salzburg is very close to the border with Austria and Germany, but it is very far from Switzerland and Italy. It is impossible to walk there on foot.
In the scene of Maria and the colonel on the terrace, Andrews kept laughing. Because every time she kissed the colonel, there was a device that made a smacking sound. After taking more than 20 shots, the end of the scene was modified to silhouettes of two people, and Andrews' laughter was hidden.
In the filming of the scene where they fell into the water from the boat, the actors had to be flooded with water repeatedly in order to keep their appearance wet.
Nicholas Hammond has brown hair, so he had to painfully dye his hair many times before and during the filming, bleaching and dyeing his hair golden.
Debbie Turner, who plays Matt, is changing her teeth during the filming of the film. Whenever she loses a tooth, the makeup artist will replace her with dentures.
When filming the scene of the marriage of Colonel von Trapp and Maria at first, the crew forgot to put the actors playing the bishop in place. When the two protagonists walked to the altar, there was no one on the altar, which was very embarrassing. The real bishop of Salzburg also played a small role in the film.
