Monsieur Taxi is a 1952 French comedy film directed André Hunebelle and starring Michel Simon and Jane Marken and Jean Brochard.
[1] It is about Pierre Verger, who is nicknamed Monsieur Taxi and always in company of a smart young dog called "Gangster".
It was shot at the Saint-Maurice Studios in Paris and on location around the city including in Saint-Maur-des-Fossés.
The film's sets were designed by the art director Lucien Carré.
In Paris Monsieur Taxi comes across a bag a passenger seems to have forgotten on the backseat.