You understand, Flack, that he's to have final say in all matters dealing with the Indians.

8 seconds sound clip from the The Big Trail (1930) movie soundboard.

You can hear this line at 00:18:33 in the Blu-ray version of the movie.

Quote context

[...]

- But he can run a bull train. Here he comes now.

- Well, Wellmore, all ready to start?

- Likely you two have met before.

- Nah.

- I reckon not.

- Coleman's gonna scout for the train.

- You understand, Flack, that he's to have final say in all matters dealing with the Indians.

- Yes? Well, who's got the final say about bossin' this bull train?

- He understands that you're the wagon boss.

- Yeah. Another thing, another thing...

- Am I supposed to be wet nurse to them woodenhead pilgrims a-crossin' the plains?

[...]