Now, the secret of the action... The secret of the action is in the wrist. It's got to flow. You're jerking. There. There.

14 seconds sound clip from the A Funny Thing Happened on the Way to the Forum movie soundboard.

You can hear this line at 01:19:34 in the Blu-ray version of the movie.

Quote context

[...]

- Hero! Master Hero! Wait here.

- Hey, hey! We're closed to members of the public.

- That young man that just went in, I must see him.

- You'll see him. They should be bringing him out any minute.

(rattling)

- Now, the secret of the action... The secret of the action is in the wrist. It's got to flow. You're jerking. There. There.

- No. Now, think of it as an extension of your arm.

- You tightened up at the last minute, didn't you?

- You're worrying about it too much. Try and sort of just do a couple without thinking about it, eh? Go ahead.

- Aw. That even felt better, didn't it?

- Yeah.

[...]