I said, don't worry, Walter.
3 seconds sound clip from the Double Indemnity movie soundboard.
You can hear this line at 00:52:28 in the DVD version of the movie.
Quote context
[...]
- What are you doing that for? What are you honking the horn for?
- You take care of the redcap and the conductor.
- Keep away from me as much as you can.
- Tell them I don't want to be helped.
- I said, don't worry, Walter.
- You start as soon as the train leaves.
- When you get to the refinery, turn off the highway onto the dirt road.
- From there it's exactly eight-tenths of a mile to the dump beside the tracks. Remember.
- No speeding. You don't want any cops stopping you with him in the back.
[...]