Joseph Gordon-Levitt wanted a specific type of "vintage" film to represent a contrast to the modern, aggressive adult content his character usually consumes.
In the world of Don Jon , the character Esther (played by Julianne Moore) gives the protagonist a DVD of this "vintage" film. Here is the background on how this fictional piece of cinema came to be: Origins and Creation Forar For Sode Brigitte Danish Movie -
While you may find references to it online, "Forår for søde Brigitte" (Spring for Sweet Brigitte) is not actually a real Danish movie. It is a created specifically for the 2013 movie Don Jon , written and directed by Joseph Gordon-Levitt. Joseph Gordon-Levitt wanted a specific type of "vintage"
It focuses on the character Brigitte and her journey through relationships and personal growth. Forar For Sode Brigitte Danish Movie -