Well, goodnight, ladies and gentlemen. Bonsoir, mesdames. Bonsoir, messieurs. Say goodnight, Hugo.
5 seconds sound clip from the Dead of Night (1945) movie soundboard.
You can hear this line at 01:19:22.741 in the Blu-ray version of the movie.
Quote context
[...]
- Temper, temper. You'll be sorry for this later, you know.
- Ladies and gentlemen, Hugo and I are old friends. Dear old pals, jolly old pals.
- Exactly. But every now and then, we have our little disagreements.
- You certainly disagree with me.
- Bah! Would you believe it? This guy thinks he carries the act. Well, in one way, maybe he does.
- Come, come, Hugo, we must be going.
- Sure, sure. But there won't be much room in the dressing room.
- Not much room in the dressing room? Why not?
- Well, goodnight, ladies and gentlemen. Bonsoir, mesdames. Bonsoir, messieurs. Say goodnight, Hugo.
- Goodnight, sleep tight, wake up sober.
- Et maintenant, mesdames, messieurs, je vais vous chanter...
- In far lands, where hazy mountains never end...
- Which is the way to Maxwell Frere's dressing room?
[...]

 Dead of Night (1945)
 Dead of Night (1945)  Phantom of the Opera (1943)
 Phantom of the Opera (1943)  Scooby-Doo, Where Are You! (1969)
 Scooby-Doo, Where Are You! (1969)  Halloween III: Season of the Witch (1982)
 Halloween III: Season of the Witch (1982)  Knight Rider (1982)
 Knight Rider (1982)