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

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

You can hear this line at 00:52:37 in the Blu-ray version of the movie.

Quote context

[...]

- I know that my suspicions were justified, but not as I had expected.

- I realize now that my sister's death was an accident. I do not blame your brother. I feel only sympathy for him.

- What I did was, I assure you, only because of Elizabeth.

- I think I understand.

(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.

[...]