I came across this 1957 French actioner, Nathalie (which was later re-titled in the USA as The Foxiest Girl In Paris) while looking up stuff on Clement Hurel whose tell-tale style is recognizable in a few of these French poster versions. (via Moviecovers)

Have no idea what the film is about, but if the movie posters are any indication, it could be ripe for a kickass remake with Angelina Jolie.