I love this androgynous thirties look by Marlene Dietrich. You can only imagine just how different and forward thinking this must have looked compared to the trends of the thirties. The beret adds a hint of allure and sophistication.
Some beret looks from my favourite eras, the forties and fifties can be seen below...
Nina Foch- I would love to emulate this style with a loose set or just pin curls
Lorelei (Marilyn Monroe) and Dorothy (Jane Russel) work two different beret styles in Gentlemen Prefer Blondes. I love the jaunty, inoccence of Lorelei's beret but Dorothy's padded beret not only suits her hairline but gives a subtle clue towards the contrast in characters of Lorelei and Dorothy.
Some red lipstick, a pout and tilt of the beret gives a sultry stare just like that of Lauren Bacall. The beret really is that cherry of top to give a seductive stare from underneath.