- Luncheon is served, madam.
- Oh, thank you, Edward.

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

You can hear this line at 00:34:41 in the Blu-ray version of the movie.

Quote context

[...]

- Sometimes, for your own sake, Red, I think you should have stuck to me longer.

- I thought it was for life, but the nice judge gave me a full pardon.

- Ah, that's the old redhead. No bitterness, no recrimination. Just a good, swift left to the jaw.

(vintage camera shutter) (3)

- They grew up together.

- Luncheon is served, madam.

- Oh, thank you, Edward.

- Come, Seth. We have so much to talk about.

- I don't suppose a man ever had a better or finer family. You know, I often wake up in the night and say to myself: 'You lucky dog. What have you done to deserve it all?' -And what have you?

- Oh, thank you.

- Oh! Oh!

- How stupid! Oh, dear, how awful!

[...]