I am Dinah Lord. My real name is Diana, but my sister changed it.

5 seconds sound clip from the The Philadelphia Story movie soundboard.

You can hear this line at 00:25:32 in the Blu-ray version of the movie.

Quote context

[...]

- Leading characteristics to be filled in later.

- I can fill them in right now.

- The young, rich, rapacious American female. No other country where she exists.

- And would I change places with Tracy Samantha Lord, for all her wealth and beauty? Oh, boy, just ask me.

- Well, tell four footmen to call me in time for lunch, will you?

- Oh! How do you do? Friends of my brother Junius, are you not?

- I am Dinah Lord. My real name is Diana, but my sister changed it.

- I'm Elizabeth Imbrie. This is Macaulay Connor.

- Enchantée de vous voir. Enchantée de faire votre connaisance.

- I spoke French before I spoke English. My early childhood was spent in Paris, where my father worked in a bank. The House of Morgan.

- Really?

- C'est vrai absolument.

[...]