Eric Toledano and Olivier Nakache who wrote and directed the film, actually worked at a summer camp at "Chateau de la Couronne" in Marthon, France - the chateau used as the main location - when they were young students.
Jacques Boudet and Jean-Paul Rouve who play father and son also worked together in "Tanguy". Boudet was a judge while Rouve portrayed a lawyer, though they did not interact together.