Sexy is sexy.
Women who were considered attractive in the mid 20th century are basically attractive now as well. The packaging is different, but faces and bodies have remained remarkably similar in a lot of ways. The media will always package women in ridiculous unnatural ways, consider the use of corsets to force the female body into a specific form. But great faces and bodies stay pretty constant.
I mean Grace Kelly was hot and there are a million Grace Kelly-esque actresses running around today as a result. See January Jones and Gwyneth Paltrow
Audrey Hepburn, also hot. Natalie Portman and Audrey Tautou both channel the Audrey Hepburn I'm gamine and cute look.