So long as the Hornblower family do us no harm.

6 seconds sound clip from the The Skin Game (1931) movie soundboard.

You can hear this line at 01:07:00 in the Blu-ray version of the movie.

Quote context

[...]

- And whereas you agreed for the sale to John Hillcrist the said property for the sum of 4,500 pounds, in consideration of said sum... ahem...

- You hereby acknowledge that you do convey all that and et cetera, et cetera. Sign here. Eyewitness.

- To that oath, mr. Hornblower, we shall add the words, so long as the Hornblower family do us no harm.

- Take it in your hands, both of you. Together. Swear.

- Swear by almighty God never to breathe a word of what I know concerning Chloe to any living soul.

- So long as the Hornblower family do us no harm.

- Oh, dada, she looked like a lost soul.

(1923 Rolls-Royce silver ghost engine) (2)

- What has she done?

- She committed her real crime when she married young Hornblower without telling him she came out of a certain world to do it.

- Oh.

[...]