<P> Principal photography began on March 26, 1964 at 20th Century Fox studios in Los Angeles, where scenes from Maria's bedroom and the abbey cloister and graveyard were filmed . The company then flew to Salzburg where filming resumed on April 23 at Mondsee Abbey for the wedding scenes . From April 25 through May 22, scenes were filmed at the Felsenreitschule, Nonnberg Abbey, Mirabell Palace Gardens, Residence Fountain, and various street locations throughout the Altstadt (Old Town) area of the city . Wise faced opposition from city leaders who opposed him staging scenes with swastika banners . They relented after he threatened instead to include actual newsreel footage of crowds cheering Hitler during a visit to the town . On days when it rained--a constant challenge for the company--Wise arranged for scenes to be shot at St. Margarethen Chapel and Dürer Studios (Reverend Mother's office). From May 23 to June 7, the company worked at Schloss Leopoldskron and an adjacent property called Bertelsmann for scenes representing the lakeside terrace and gardens of the von Trapp villa . From June 9 to 19, scenes were shot at Frohnburg Palace which represented the front and back façades of the villa . The "Do - Re-Mi" picnic scene in the mountains was filmed above the town of Werfen in the Salzach River valley on June 25 and 27 . The opening sequence of Maria on her mountain was filmed from June 28 to July 2 at Mehlweg mountain near the town of Marktschellenberg in Bavaria . The final scene of the von Trapp family escaping over the mountains was filmed on the Obersalzberg in the Bavarian Alps . </P> <P> The cast and crew flew back to Los Angeles and resumed filming at Fox studios on July 6 for all remaining scenes, including those in the villa dining room, ballroom, terrace, living room, and gazebo . Following the last two scenes shot in the gazebo--for the songs "Something Good" and "You Are Sixteen"--principal photography concluded on September 1, 1964 . A total of eighty - three scenes were filmed in just over five months . Post-production work began on August 25 with three weeks of dialogue dubbing to correct lines that were ruined by various street noises and rain . In October, Christopher Plummer's singing voice was dubbed by veteran Disney playback singer Bill Lee . The film was then edited by Wise and film editor William Reynolds . Once the film was edited, Irwin Kostal, who orchestrated the musical numbers, underscored the film with background music consisting of variations on Rodgers and Hammerstein's original songs to amplify or add nuances to the visual images . When dubbing, editing, and scoring were complete, Wise arranged for two sneak - preview showings--the first one held in Minneapolis on Friday January 15, 1965 at the Mann Theater, and the second one held the following night in Tulsa . Despite the "sensational" responses from the preview audiences, Wise made a few final editing changes before completing the film . According to the original print information for the film, the running time for the theatrical release version was 174 minutes . The film was eventually given a G rating by the Motion Picture Association of America . </P> <P> The Sound of Music was filmed in 70 mm Todd - AO by Ted McCord and produced with DeLuxe Color processing . Aerial footage was photographed with an MCS - 70 camera . The sound was recorded on 70 mm six - track using a Westrex recording system . The sets used for the film were based on the storyboards of sketch artist Maurice Zuberano, who accompanied Wise to Austria to scout filming locations in November 1963 . Wise met with the artist over a ten - week period and explained his objective for each scene--the feeling he wanted to convey and the visual images he wanted to use . When Zuberano was finished, he provided Wise with a complete set of storyboards that illustrated each scene and set--storyboards the director used as guidance during filming . Zuberano's storyboards and location photos were also used by art director Boris Leven to design and construct all of the original interior sets at Fox studios, as well as some external sets in Salzburg . The von Trapp villa, for example, was actually filmed in several locations: the front and back façades of the villa were filmed at Frohnburg Palace, the lakeside terrace and gardens were a set constructed on a property adjacent to Schloss Leopoldskron called Bertelsmann, and the interior was a constructed set at Fox studios . The gazebo scenes for "Something Good" and "Sixteen Going on Seventeen" were filmed on a larger reconstructed set at Fox studios, while some shots of the original gazebo were filmed on the grounds at Schloss Leopoldskron in Salzburg . </P> <P> Robert Wise hired Mike Kaplan to direct the publicity campaign for the film . After reading the script, Kaplan decided on the ad line "The Happiest Sound in All the World", which would appear on promotional material and artwork . Kaplan also brought in outside agencies to work with the studio's advertising department to develop the promotional artwork, eventually selecting a painting by Howard Terpning of Andrews on an alpine meadow with her carpetbag and guitar case in hand with the children and Plummer in the background . In February 1964, Kaplan began placing ads in the trade papers Daily Variety, Weekly Variety, and The Hollywood Reporter to attract future exhibitor interest in the project . The studio intended the film to have an initial roadshow theatrical release in select large cities in theaters that could accommodate the 70 - mm screenings and six - track stereophonic sound . The roadshow concept involved two showings a day with reserved seating and an intermission similar to Broadway musicals . Kaplan identified forty key cities that would likely be included in the roadshow release and developed a promotional strategy targeting the major newspapers of those cities . During the Salzburg production phase, 20th Century Fox organized press junkets for America journalists to interview Wise and his team and the cast members . </P>

Who played the nazi in the sound of music