The Foxiest Girl in Paris

Nathalie is a 1957 French-Italian comedy crime film directed by Christian-Jaque and starring Martine Carol, Mischa Auer and Michel Piccoli. It was shot at the Joinville Studios of Franstudio and the Photosonor Studios, both in Paris. Location shooting also took place around the city including the Printemps department store and Paris Airport. The film's sets were designed by the art director Robert Gys. It was followed by a sequel Nathalie, Secret Agent in 1959, also starring Carol.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.