Co-written by novelist Delphine de Vigan.
Info:
https://en.wikipedia.org/wiki/You_Will_Be_My_Son
Paul de Marseul runs a prestigious family wine estate with passion and flair, assisted by his son whom he cannot stand and constantly puts down. When his loyal vineyard manager's son returns to the estate, Paul sees in him his ideal son and heir.
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I am posting several films written by De Vigan: À coup sûr {Best in Bed}; You Will be My Son (Tu seras mon fils); No et moi; Tropique de la violence; and Les heures souterraines {Underground Time}.