While you’ve probably heard of Cannes, Nice and Saint-Tropez, the village of Mougins is a lesser-known part of the French Riviera. That’s an advantage for those who live there, though, including the many directors, movie stars, musicians and writers who reside among other wealthy homeowners. Mougins is set in the Grasse district, and while it’s only 15 minutes from Cannes, the village is notably...