his strength, they leave in a snowstorm and head toward the border. Cast Jean-Paul Belmondo as Louis Mahé Catherine Deneuve as Julie Roussel / Marion Vergano Michel Bouquet as Comolli Nelly Borgeaud as Berthe Roussel Marcel Berbert as Jardine Martine Ferrière as the Landlady Yves Drouhet as the Detective Roland Thénot as Richard Production Filming locations Aix-en-Provence, Bouches-du-Rhône, France Antibes, Alpes-Maritimes, France Grenoble, Isère, France Le Tampon, Réunion Lyon, Rhône, Rhône-Alpes, France Nice, Alpes-Maritimes, France Saint-Denis, Réunion Sainte-Anne, Réunion Sainte-Suzanne, Réunion Reception Box Office The film was the 16th most popular movie at the French box office in 1969. Critical response In his review in The New York Times, Vincent Canby wrote that the film "defies easy definition and blithely triumphs over what initially appears to be structural schizophrenia." Canby noted the performances of Belmondo, Deneuve, and Bouquet, which were "played with marvelous style." Canby concluded: In his review in the San Francisco Chronicle in 1999, film critic Edward Guthmann praised the film, writing: The film had many detractors. Dennis Schwartz, wrote: On Rotten Tomatoes, the film has an approval rating of 82% based on 17 reviews. References Citations Further reading External links Mississippi Mermaid at Le Film Guide 1969 romantic drama films Films based on American novels Films directed by François Truffaut Films set in France Films set in Réunion 1960s French-language films French neo-noir films United Artists films Films with screenplays by François Truffaut Films based on works by Cornell Woolrich French romantic drama films Poisoning in film 1960s French films