1967-1976. As one of history's greatest fashion designers entered a decade of freedom, neither came out of it in one piece.

Gaspard Ulliel
as Yves Saint Laurent

Jérémie Renier
as Pierre Bergé

Louis Garrel
as Jacques de Bascher

Léa Seydoux
as Loulou de la Falaise

Aymeline Valade
as Betty Catroux

Amira Casar
as Anne-Marie Munoz

Micha Lescot
as Monsieur Jean-Pierre

Helmut Berger
as Yves Saint Laurent in 1989

Valeria Bruni Tedeschi
as Client

Valérie Donzelli
as Tante Renée