[B]elle de Jour may have been released 50 years ago this year, but the style will never age. Catherine Deneuve’s character, Séverine Serizy, is a bored housewife who finds sexual reawakening when she becomes ‘Belle de Jour’ – a daytime prostitute in 60s Paris. Directed by Luis Buñuel, the film is subtly surrealist, and this aesthetic is made evermore captivating through Séverine’s sartorial style. With many of the outfits designed by Yves Saint Laurent, her looks carefully enhance the Belle de Jour’s paradoxical nature: Parisian elegance meets BDSM tendencies. Check out our top style lessons below so you too can exude Deneuve’s mysterious and iconic appeal..