There are many true stories related to French cases. One could be about a historical legal battle or a crime investigation. But it really depends on which specific area or time period you're interested in.
I'm not sure. It depends on the specific details and the source of the story. Sometimes, what seems like a true story could have elements of fiction added for dramatic effect.
The French Dispatch is not a true story. It's a work of imagination and creativity by the filmmakers. They crafted a fictional narrative with various elements and characters for entertainment purposes.