The economic proposition of marriage for 19th century women, the struggle towards having 'a room of ones own', the meta commentary on artistry vs mercenary, growing up and the loss of innocence... So rich and smart and thoughtful and just deeply heart warming / loved Amy as a character she is underappreciated and underrated
To me it's the noirest film noir. No lady is more dangerous than Rita Hayworth and no man is more adventurous yet vulnerable than Orson Welles. And basically that kind of two opposite sex is everything about film noir.