- I'm sorry, Christine. But I'm really concerned about what may happen tonight.
- I know. I am, too.

6 seconds sound clip from the Phantom of the Opera (1943) movie soundboard.

You can hear this line at 01:08:03.022 in the Blu-ray version of the movie.

Quote context

[...]

- Excuse me. The overture.

- Thank you again, Maestro.

- You men are to remain onstage throughout the performance. You are to make yourselves as inconspicuous as possible and be on the alert for anything suspicious.

- The only persons who have business backstage are the members of the Opera company, all of whom you know. That is all.

- Christine, I'd much rather you'd stayed at home. Surely you understand why I asked them not to let you sing tonight.

- But I couldn't stay away. We're introducing a new opera, and Madame Lorenzi is a great artist, and...

- And Anatole Garron is the baritone.

- I'm sorry, Christine. But I'm really concerned about what may happen tonight.

- I know. I am, too.

- Wait for me, please, in your dressing room.

- I'm sorry.

- He's here, Gerard. He's murdered one of our men and stolen his cape. He's probably wearing one of the masks. Watch everyone closely.

- Of course, monsieur.

(OPERA AUDIENCE APPLAUDING)

[...]