Suzie de Rohan Willner, its chief executive and an unassuming and warm presence, had flown in from London opening week.

From artful tailoring imprints to mass-market chino magicians, these labels give the 9-to-5 slog a very stylish name.

Nine designers discuss the films that continue to inform their aesthetics, from “In the Mood for Love” to “The Exorcist.” ...