Although the movie features such luminaries as Jeanne Moreau,Michel Bouquet and Madeleine Renaud ,it failed commercially and even the three actors' fans do not even know the existence of "L'Humeur Vagabonde" .Not exactly a mainstream work ,the movie can be seen as an in-communicability metaphor ,which the final lines of movie tend to reinforce .The clueless young hero (played by an actor who was to remain unknown)is easy to identify with for the viewer as he hangs around the Streets of Paris,meeting people holding conversations which always remain incomplete or deceptive : almost all the male parts are played by Bouquet;Simon and Garfunkel' s "sounds of silence" in "Alice in wonderland".A curio.