Tell me you have at least one retro-tastic Summer dress in your closet. I used to be addicted to these when I lived in NYC — flea market finds were perfect for sticky hot Summer days . . . and nights. I still have a couple favorites for a Summer picnic or garden party. Marion Cotillard's sheer red frock is the most desirable — not too sweet, slightly sexy. Her candy-colored Ray-Bans bring the vintage feel home. May I suggest pairing yours with modern sandals or flats; you don't want to look like you just stepped out of Pleasantville, or do you?!