You must excuse me, Mr Banning.

2 seconds sound clip from the The Mummy (1959) movie soundboard.

You can hear this line at 01:15:07.280 in the Blu-ray version of the movie.

Quote context

[...]

- You pry and meddle with unclean hands and eyes. Profanity, blasphemy, religious desecration, all these you are guilty of.

- But the powers with which you have meddled do not rest easy. I think you will not go unpunished.

- Punished? By whom?

- There are certain things for which civilisation has no answer.

- But if you choose to meddle thus, then you must be prepared to face the consequences, whatever they are.

- Consequences? That sounds like a threat.

- You must excuse me, Mr Banning.

- We like to think that our European dress, our liberal education have buried the past. But, occasionally, one is forced to realise that all this is only veneer.

- Thousands of years of traditional belief cannot be dismissed in one generation.

- Please, accept my apologies.

- Please, I should apologise to you. After all, I only came here to welcome you.

- I'm afraid I got rather carried away. I mustn't detain you any longer.

- You haven't detained me at all.

[...]