Maurice Pialat's La Maison des bois 3 (1971)

Mme Latour (Micha Bayard) and Mme Pouilly (Marie-Christine Boulart), Michel and Bébert's mothers, arrive at an empty Maison des bois, obviously not knowing that their letters have been destroyed by a jealous Hervé. Meanwhile the Picard family enjoy a picnic which recalls Renoir's film Une partie de campagne (1936), which in turn recalls some paintings by Monet, Pialet having been a painter before he was a film director. Marcel leaves for the war.

Conveniently, the French Wikipédia provides a précis of each episode, which I give at the bottom of each post here: as La Maison des bois deserves more than one long blog post, I make seven short ones.

Épisode 3

1 Une messe – 2 La carriole – 3 Les Parisiennes attendent – 4 Le pique-nique – 5 Querelles de mères – 6 Partie de campagne – 7 L’attente à la Maison des Bois – 8 Chandelle ! – 9 Un malentendu – 10 Hervé s’explique – 11 Marcel prend un bain – 12 Marcel incorporé – 13 Tournée générale – 14 La fête dégénère – 15 Marcel part à la guerre – 16 Générique.