- Billy mustn't grow up to be a rich man's son.
- He won't.
- They're usually made of sponge cake.
- But he won't be.

— Charlie Castle (Jack Palance)

12 seconds sound clip from the The Big Knife (1955) movie soundboard.

You can hear this line at 01:38:38 in the Blu-ray version of the movie.

Quote context

[...]

- Hank doesn't leave until tomorrow.

- Did you ever tell him about all this?

- No.

- Why don't we call him over? Hank knows how to fix.

- All right.

- Hello, Hank? Look, dear, could you come over here right away? Yes, we need your advice about something. Yes, it's very important.

- The times beyond are cold and lonely. Far away as the stars.

- But there were two of us.

- Billy mustn't grow up to be a rich man's son.

- He won't.

- They're usually made of sponge cake.

- But he won't be.

- You taught me so many things, darling, even how to listen to music. Play some music.

- All right. What would you like to hear?

- Something immortal. I don't know, anything that's on the machine.

- I'll never leave him. It's not just that I'm a wife of the old-fashioned school. I'm so deeply a part of his existence.

- No matter how many times I leave, I always go back. He's part of me.

[...]