Marilyn Monroe was involved in activities in the 1950s.
As Young as You Feel ( 1951 ) is a comedy film starring Monty Woolley , Thelma Ritter , and David Wayne , with Marilyn Monroe in a small role . Marilyn Monroe . Famous for playing comic `` dumb blonde '' characters , she became one of the most popular sex symbols of the 1950s , emblematic of the era 's attitudes towards sexuality .