A Certain Mister (French: Un certain monsieur) is a 1950 French crime film directed by Yves Ciampi and starring René Dary, Hélène Perdrière and Pierre Destailles. It was shot at the Billancourt Studios in Paris. The film's sets were designed by the art director Lucien Carré. The script is based on Jean Le Hallier's 1947 novel of the same title. Synopsis When documents vital to French national security are stolen, the police join forces with three master criminals in order to recover them. Cast Hélène Perdrière as L'Index, member of the band René Dary as Le Pouce, member of the band Pierre Destailles as Le Majeur, member of the band Louis Seigner as Commissioner Clergé Marc Cassot as inspector César alias André Paris Junie Astor as Edmée Lamour Lise Delamare as Mrs. Lecorduvent Louis de Funès as Thomas Boudeboeuf, journalist of "l'avenir Sauveterrois" Alice Field as Mrs. Léonard Julienne Paroli as La bigote Paulette Andrieux as Mademoiselle Germaine Sabrelong, la fille du notaire René Blancard as Le commissaire Bellefontaine Roland Toutain as Un complice Emile Genevois as Un complice Julien Maffre as Un complice Paul Demange as Léonard Tony Taffin as Ottavio Robert Lussac as Hector Henri Vilbert as Antoine Alexandre Mihalesco as Alexandre Lecorduvent, antiquaire Titys as Un vieux monsieur Guy Favières as Le sacristain Catherine Arley Claude Castaing Jacques Sablon Edmond Tamiz Jean-Paul Moulinot Charles Bayard Emile Remongin Louis Bugette References Bibliography Goble, Alan. The Complete Index to Literary Sources in Film. Walter de Gruyter, 1999. Vincendeau, Ginette . Stars and Stardom in French Cinema. Bloomsbury Publishing, 2000. External links Un certain monsieur (1949) at the Films de France 1950 films French crime films 1950s French-language films French black-and-white films Films directed by Yves Ciampi 1950 crime films 1950s French films Films based on French novels Films shot at Billancourt Studios