It wasn't you? That's what I thought.
6 seconds sound clip from the The Kid with the Golden Arm movie soundboard.
You can hear this line at 00:50:28 in the DVD version of the movie.
Quote context
[...]
- With unarmed men, you are very brave.
- Golden Arm said you'd be here. He said to talk to you.
- If you agree to back off, then he will cut you in, 20 percent.
- I have a question. Last night, how did you manage to kill the Wang brothers in our escort?
- It wasn't you? That's what I thought.
- The boss wants your answer. If you don't agree, then he would like a duel.
- Good. And the place? The time?
- At noon on the Chi Li hills.
[...]