His films like 'Scenes from a Marriage' and 'Husbands and Wives' dissect intimate relationships with unparalleled psychological depth, exploring the dissolution and complexity of marital bonds.

He repeatedly examined romantic relationships and marriage through works like 'Jules and Jim' and 'The Story of Adèle H.', capturing the emotional turbulence of love and separation.

His 'Three Colors' trilogy and 'The Double Life of Véronique' explore interconnected human relationships and the fragility of marriage with philosophical elegance and emotional precision.