What is the title of this film?

I’m looking for the title of this film, but I have such a vague set of information about it that googling for it hasn’t been fruitful.

I know the film is French. It’s filmed in black and white. It appears breifly in Amélie (Le Fabuleux Destin d’Amélie Poulin).

In the film, there is a scene where a woman wearing a cap is running with two men who are slightly behind her. They are running on a bridge with a wire-mesh over the sides.

I think it is reasonably well known.