- They are no good in this country.
- Well, where are they good?
- In Bovania.

9 seconds sound clip from the Swiss Miss (1938) movie soundboard.

You can hear this line at 00:17:10 in the DVD version of the movie.

Quote context

[...]

- Aw, just skip it. Bring me the bill.

- Waiter, the bill.

- Take it out of that and bring me the change in American currency - large denominations.

- That is some funny joke. You Americans give always to me a sense of humor.

- Now stop the monkey business and give me some real money that I can pay the bill.

- What do you mean real money? You've got 5,000 francs in that bill.

- They are no good in this country.

- Well, where are they good?

- In Bovania.

- Maybe we'd better go to Bovania.

- Where is Bovania?

- There is no such place.

- What are we going to do about it?

- What are you going to do? You are going to pay the bill.

[...]