In an interview, director Claude Chabrol stated that he was applying techniques which Alfred Hitchcock used even without realizing it.
Although the English translation of the title is 'Thanks for the Chocolate,' the movie was shown on Australian television in 2003 under the name 'Nightcap.'
In an interview about the film, Claude Chabrol said: "Perversity guides its adept (or its victim) to a form of relative solopsism that leads us to provide other examples of relative solopsism; that of the musician, for instance, with infinitely more benign consequences that are nonetheless real. We have tried to illustrate this idea by the slow dissolution of the most definite certainties of our society - here, filial descent, and so the family. The main aim is to get across the idea that all certainties melt away as the story progresses."