- What about it?
- I was just mentioning it.

6 seconds sound clip from the Gilda (1946) movie soundboard.

You can hear this line at 01:14:37.846 in the Blu-ray version of the movie.

Quote context

[...]

- This is Mr. Mundson speaking. Call the flying field. Tell them to proceed as instructed. Is that clear? Proceed as instructed.

(car engine starts and revs)

- Ballin was wrong, wasn't he?

- About what?

- He said you can shut out excitement by just closing a door. You can't, can you?

- I don't know what you're talking about.

- I was just mentioning how quiet it was in the house. There isn't anybody here but us, you know. Everybody's celebrating Carnival.

- What about it?

- I was just mentioning it.

- Good night, Johnny.

- I couldn't get it out of my head, what she said about nobody being in the house but us.

- I thought of Ballin back in the casino, fighting for his life, and this little...

- I knew that all his plans, all his dreams of greatness would be wrecked because of what she was doing to him.

[...]