The 40's was the cruelest decade of 20th Century because the WWII. Hollywood exported two different glamourous world, the extravaganza musicals in Technicolor (from MGM or Fox); and specially film noir with its dark, sordid, chic atmosphere: detectives, gangsters, femme fatales, corruption, evil. The reality was even worse off screen.
Let's remember WB women pictures, with Bette Davis or Joan Crawford.
Glamour girls unknown in extra roles in the 30's did get the eternal fame: Lana Turner, Rita Hayworth.
Greta, retirada del cine en 1941
Hedy Lamarr, importada de Austria
Joan Fontaine, me gusta su estilo británico