- Uncle Willie! Where are you going?
- Back to bed, unless you'll give me your oath you'll speak in a civilized tone of voice.

— Uncle Willie (Roland Young)

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

You can hear this line at 01:25:10 in the Blu-ray version of the movie.

Quote context

[...]

- Who is it? Doggone. I thought it might have been Mr. Kittredge.

- Well, we can't have everything, Mac.

- Good night.

- Good grief, man. Don't scream at me at the top of your voice like that.

- Miss Dinah is waiting for you, sir.

- Miss Dinah? Waiting for me? Where and why?

- Just outside the door, sir. I don't know why.

- Oh, this is one of those days which the pages of history teaches are best spent lying in bed.

- Uncle Willie! Where are you going?

- Back to bed, unless you'll give me your oath you'll speak in a civilized tone of voice.

- I'll be quiet, Uncle Willie. It's so important that I see you.

- Well, must we ride in that thing? Wouldn't we be more comfortable on pogo sticks?

- I had to be alone with you, and this is very intimate.

- Oh! Oh! Oh!

- What's the matter?

- Oh, nothing. Nothing much. My head just fell off, that's all.

[...]