Oliva de Havilland's Voice Change
In the film, the girlishness of Catherine is made more overt by her high-pitched speaking voice. However, once her father confronts her with the truth of her many shortcomings as a woman, which for him make Morris Townsend's attentions all the more ridiculous, Catherine's voice drops into a womanly tone. In the scenes that follow, when she speaks of Dr. Sloper to Morris, it drops again, and in all her remaining scenes, is lowers. "My father does not like me" and "as if, as if they despise you" is very mature in timber. It is a great signal that Catherine's innocence toward life with father has forever been shattered. The girl is gone, the heiress begins to emerge from her fantasy. Olivia de Havilland is brilliant in her use of her voice in this film. She justly deserved the Oscar for this brilliant performance.
-- Ew lover, you gonna make me clutch my pearls --