"Laughing’s always very bad in women in the past. It’s a sign of sexual availability. You shouldn’t show your teeth. It’s a sign of being garrulous, plebeian, vulgar. But that’s one of the reasons why I like Lizzy Bennet so much, because she does seem to drive the plot with her own laughter. So that’s one of the things… her irreverence, I think, is one of the things that makes her so attractive and easy for modern audiences to digest."
Pride and Prejudice: Having a Ball