Ah! Not a very aristocratic name, unfortunately.

5 seconds sound clip from the Mr. Topaze (1961) movie soundboard.

You can hear this line at 00:20:52 in the Blu-ray version of the movie.

Quote context

[...]

- And may I draw your attention to the fact that this will be the third pupil that I have successfully recruited for the school this year.

- You have thus rendered a great service to three families.

- Thank you. (2)

- What is the boy's name?

- His name is Gaston Courtrois.

- Ah! Not a very aristocratic name, unfortunately.

- Now, had it been De Courtrois, it might have influenced me.

- He has a certain agility of mind, a natural gift for grasping shades of meaning...

- And I'm afraid I rather committed myself with his aunt who is, incidentally, a famous musical comedy star.

- Oh? How interesting!

- Yes.

- Yes.

[...]