John Ford was a great fan of this film. He even held the party for Borowczyk during which Ford told him: "You know the mystery that the filmmakers are still fighting for to know. You know how to make a commercial film and do not loose your own identity".
Théâtre de Monsieur & Madame Kabal (1967) was the first feature film by Walerian Borowczyk and the last time he would work in the field of animation until Scherzo infernal (1984).
The man talking with Madame Kabal is Walerian Borowczyk himself.