The Heart of a Nation (French: Untel père et fils) is a 1943 French drama film directed by Julien Duvivier who co-wrote screenplay with Marcel Achard and Charles Spaak. The film stars Raimu, Michèle Morgan and Louis Jouvet.

The film follows a family in Montmartre from the Franco-Prussian War to World War II.

An American release featured an introduction by Charles Boyer and scenes of the German entry into Paris.

• Raimu as L'oncle Jules Froment
• Michèle Morgan as Marie Froment-Léonard
• Louis Jouvet as Pierre Froment / Félix Froment
• Suzy Prim as Estelle Froment adulte
• Renée Devillers as Gabrielle Froment
• Louis Jourdan as Christian (uncredited)

Louis Jourdan played the on screen brother of his real life brother, Pierre.^[2]

Filming started in late 1939 but was interrupted by the war.^[3]

The film was released in New York before France.

On January 25, 2005, the American version of the film that is dubbed into English and features a prologue by Charles Boyer was released by Alpha Video on DVD .^[4]

• The Heart of a Nation at Rotten Tomatoes
• Untel père et fils at DvdToile
• The Heart of a Nation at IMDb
• The Heart of a Nation at the British Film Institute^{[better source needed]}