I like Gigot, with Jackie Gleason as the main character, a poor, mute, French janitor. He wrote the music for the movie. It was directed by Gene Kelly. It was filmed in France and all characters are French but they do speak in English, with strong French accents. Not sure if it qualifies as a "French" movie, but if you liked the Red Balloon, you'll like this one. Wish TCM would show it.