There was a silly British gangster film in 1960, Too Hot to Handle, where Jayne Mansfield wore such a dress, and about which the story was promoted that the movie was so risque a few extra sequins had had to be painted on to the film to protect (or fetishise) Jaynes nipples
Off-the-shoulder necklines, square necklines, sweetheart shapes, and one-shoulder designs each create a distinct visual effect
Her figure was at its peak, the dress was a classic shape of fashion at the time. In this YouTube clip of Monroe serenading President Kennedy, you can see all of those hand-sewn crystals in action, glittering around her like thousands of tiny stars: [I]t was Marilyn who was the hit of the evening, read Time magazines 1962 recap of the event
Dress it up with a bow tie, polished black shoes, and refined accessories to get close to the formality of a tuxedo without the full commitment
Boots are my favorite part of fall and an integral item to your fall wardrobe