This film, commonly known as "En passion" (or "The Passion" aka "The Passion of Anna"), has an actual on-screen title of "L 182".
The alternate title "L 182" is the production number, also seen written on the clapperboard before the interview scenes.
Dinner scene between the four characters is mostly improvised.
Originates from the same working material as Reservatet (1970), both with Erland Josephson as Elis Vergérus.
This film is included in the "Ingmar Bergmans Cinema" set, which is part of the Criterion Collection.