One of the people shown repeatedly during the overture is Alootook Ipellie, one of Canada's best-known Inuit artists and poets. Ipellie was attending a meeting of the International Inuit Circumpolar Conference in Stockholm during the production and was picked off the street because of his unusual features.
The film's soundtrack is the first ever recorded in stereo for a television production.
Liv Ullmann can be seen in the audience during the Overture. The Swedish Film Institute lists some of the other individuals who appear very briefly during the overture as audience members: Ingmar Bergman himself, his son Daniel Bergman, his wife Ingrid von Rosen, Erland Josephson, Lisbeth Zachrisson, the film's cinematographer Sven Nykvist, János Herskó, Magnus Blomkvist, the film's choreographer Donya Feuer, and Lars-Owe Carlberg.
A one-hour TV documentary, Tystnad! Tagning! Trollflöjten! (1975), was filmed in connection with this movie. It followed director Ingmar Bergman behind the scenes.