- Where are you going, sir?
- To apologize to Don Medina.

6 seconds sound clip from the The Pit and the Pendulum (1961) movie soundboard.

You can hear this line at 00:53:11 in the Blu-ray version of the movie.

Quote context

[...]

(Thunder)

- I'm sorry that our meeting should have taken place under such unhappy circumstances. Had things been otherwise...

- Perhaps we shall meet again... in Barcelona.- I hope so.

- Good night, Dona.

- Good night.

(Thunder) (2)

- Where are you going, sir?

- To apologize to Don Medina.

- I wouldn't speak to him just now. He is much overwrought. In the morning, perhaps.

- You will be leaving then?

- Yes.

- Will you accept the hospitality of my carriage?

- Thank you, Doctor. Good night.

(Thunder) (3)

[...]