In "Casino Royale," the dress code reflects the film's high-stakes atmosphere and sophisticated setting. Guests at the exclusive casino are expected to adhere to a formal attire standard, typically featuring elegant evening wear. Men often don tuxedos or tailored suits, while women opt for glamorous gowns. This emphasis on style not only enhances the film's luxurious aesthetic but also underscores the characters' social status and the tension of the poker game. Adhering to this dress code is essential for blending into the elite world of high-stakes gambling and intrigue.