Don't scrape the plate, I'm sure there's more in the kitchen.
5 seconds sound clip from the Gone with the Wind (1939) movie soundboard.
You can hear this line at 02:53:56 in the Blu-ray version of the movie.
Quote context
[...]
- I'm thinking about how rich we are.
- I can keep the lumber business too, can't I?
- Yes, of course you can, if it amuses you.
- But you were the main one I wanted to go to the devil.
- Don't scrape the plate, I'm sure there's more in the kitchen.
- Oh, can I have one of the chocolate ones stuffed with meringue?
- If you don't stop being such a glutton, you'll get as fat as Mammy. And I'll divorce you.
- Don't you think it'd be nice if you bought something for Mammy, too?
- Why should I buy her a present when she called us both mules?
[...]