The art of motion pictures is pictorial and language comes a distant second.
The French have got to understand that a film is so expensive that it can no longer afford to be regional or even national in scope.
When you create a movie, you create something in your image.
To do the writing, I have to have time to do research.
When Americans shoot movies they aim at the entire planet. When the French make movies, they aim at Paris.
When a French book becomes an international hit it is because of the author and not because of the language. The same goes for movies.