- Who's that, opened that door?
- It's them boys again, sir.

4 seconds sound clip from the The Invisible Man (1933) movie soundboard.

You can hear this line at 00:34:44.591 in the Blu-ray version of the movie.

Quote context

[...]

- Don't stare at me, you fool. Look in front of you. Come on, get a move on!

- Here we are, Kemp. In here.

- Here. Stroll up and down as though you were waiting for someone.

- Watch for that window to open.

- Griffin? Griffin? Are you there?

- Who's that, opened that door?

- It's them boys again, sir.

- Here, you leave this door alone. It's private, see?

- We never touched it!

- Yes, you did. Go on! Go on! Off you go!

- Here you are, Kemp.

- Lies from beginning to end! I have a good mind to prosecute the whole lot of you for conspiracy.

- I shall announce this evening that the whole thing is a hoax, and you'll be the laughingstock of the entire country.

[...]