The Bouvier-Sauvages, a large aristocratic family, meet the much more modest Martin family when their children's wedding is announced. For the occasion, the future bride and groom offer their parents DNA tests, which will reveal their true origins. The results are totally unexpected and will make the effect of a bomb.
Christian Clavier
as Frédéric Bouvier-Sauvage
Didier Bourdon
as Gérard Martin
Sylvie Testud
as Nicole Martin
Marianne Denicourt
as Catherine Bouvier-Sauvage
Julien Pestel
as François Martin
Chloé Coulloud
as Alice Bouvier-Sauvage
Patrick Préjean
as Gérard Martin's father
Sophie Froissard
as Maria, housekeeper
Johann Dionnet
as Mr. Ribeiro, plumber
Loïc Rojouan
as Concession Man
Charline Paul
as Hairdresser
Philippe Vieux
as Gendarme