You're not locking her up.

2 seconds sound clip from the The Third Man (1949) movie soundboard.

You can hear this line at 00:29:29.967 in the Blu-ray version of the movie.

Quote context

[...]

- You won't learn anything from them. They're only love letters. There are not many of them.

- They'll be returned to you, Miss Schmidt, as soon as they've been examined.

- There's nothing in them.

- Harry never did anything. Only a small thing once, out of kindness.

- And what was that?

- You've got it in your hand.

- Major Calloway. Finished?

- Yes.- Okay.

- You will have to come with us, Miss Schmidt.

- You're not locking her up.

- Go home, Martins, like a sensible chap. You don't know what you're mixing in. Get the next plane.

- As soon as I get to the bottom of this, I'll get the next plane.

- Death's at the bottom of everything, Martins. Leave death to the professionals.

- Mind if I use that line in my next western?

[...]