I stumbled upon this image recently, a meeting of two French starlets with amazingly tiny waists: Isabelle Corey who had then just been in my favorite French movie of all time, Bob le flambeur, and upcoming sex star Brigitte Bardot. This was taken on May 12, 1956, during the Cannes Film Festival.

Of course, Brigitte was on her way to change the face of screen eroticism forever while Isabelle would star in only a handful of films (mostly in Italy) until 1961 or so.
(Photo by Haywood Magee/Picture Post/Getty Images)