- Of course they may be right.
- Don't you believe it.
- I don't know. They seem so awfully sure.

— Johnny Case (Cary Grant)

6 seconds sound clip from the Holiday (1938) movie soundboard.

You can hear this line at 01:06:52.687 in the Blu-ray version of the movie.

Quote context

[...]

- There's a conspiracy against you and me, child.

- What's that?

- The vested interests.

- I know.

- They won't let you have any fun, and they won't give me time to think.

- I suppose like the great fathead you are, you told Father all your little hopes and dreams?

- Mm-hmm.

- Pretty disappointing?

- Bad enough.

- Poor boy.

- Hey, what about your own evening?

- Not so hot either.

- Poor girl.

- Of course they may be right.

- Don't you believe it.

- I don't know. They seem so awfully sure.

- It's still your ride, isn't it? You know where you want to go, don't you?

- I thought I did.

- So did I.

- Pathetic, wasn't it? All my fuss and fury over anything as unimportant as this party.

- Maybe it is important.

- Well, if it is, I'm not, and I guess that's the answer.

- Linda, you're so sweet.

- Thanks. That's enough. It was grand. Listen.

[...]