Okay. Unroll your fist. Arm up.

8 seconds sound clip from the The Exorcist movie soundboard.

You can hear this line at 00:32:31 in the Blu-ray version of the movie.

Quote context

[...]

- Oh, Karl. Jesus Christ, Karl, don't do that.

- Very sorry, but you see, no rats.

- No rats. Thanks a lot. That's terrific.

(church bells ringing)

- Oh, my God.

- Okay. Unroll your fist. Arm up.

- Very good. That wasn't so bad, was it?

- Remain perfectly still. Breathe normally.

- Tell me if you feel a vibration.

- Regan?

[...]