Don't be alarmed, ladies and gentlemen. Those chains are made of chrome steel.

4 seconds sound clip from the King Kong (1933) movie soundboard.

You can hear this line at 01:30:03.486 in the Blu-ray version of the movie.

Quote context

[...]

- I want you to meet a very brave gentleman, Mr. John Driscoll.

- And now before I tell you the full story of our voyage, I'm going to ask the gentlemen of the press to come forward, so that the audience may have the privilege of seeing them take the first photographs of Kong and his captors. All right, boys.

- Miss Darrow first, alone. Stand in front of Kong, Ann.

- All set, Jack?

- OK.

- Make it a good one. Shoot.

(Kong roaring) (2)

- Don't be alarmed, ladies and gentlemen. Those chains are made of chrome steel.

- It's all right, Ann.

- Get them together, boys. They're going to be married tomorrow.

- Put your arm around her, Driscoll.

- Wait a minute, wait a minute! Hold on! He thinks you're attacking the girl!

- Aw, let him roar. It's a swell picture.

[...]