- You see, Kidd is holding a dirty piece on Tracy's father. This might stop him.
- On Tracy's father?
- That's right.

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

You can hear this line at 01:07:28 in the Blu-ray version of the movie.

Quote context

[...]

- Hey, that's not bad. When did I say that?

- You didn't. I did. Sorry.

- I suppose you never heard about Kidd's little arrangement in Kansas City?

- No.

- In San Francisco.

- Let me tell you about the time he went to Boston to be awarded the Sarah Langley medal for world peace.

- The true story on that little jaunt would ruin him.

- Look, what would happen to you if I used this stuff?

- Why?

- Well, I might want to, very much.

- You see, Kidd is holding a dirty piece on Tracy's father. This might stop him.

- On Tracy's father?

- That's right.

- Oh. Oh, so that's how Kidd got you to... That's how Liz and I were gotten in.

- Blackmail, huh? We all rode into this thing on a filthy blackmail.

- Well, look, you use it. Use it with my blessings. I'm cooked. I'm through anyway.

- I'm not gonna hand in a story on this wedding. I'm gonna write one on Kidd.

- No, no, let me do it. I don't have to tell him where I got my facts. Okay?

- Okay.

[...]