Well... you should hear both sides before you say that, missy.
6 seconds sound clip from the The Skin Game (1931) movie soundboard.
You can hear this line at 00:16:49 in the Blu-ray version of the movie.
Quote context
[...]
- Do you realize that I'm very nearly around you? Eh? I'm at... up hill.
- The works are here. Here's Longmeadow. Here's the centry, that I've just bought.
- So my goods will be running right round you.
- How will you like that for a country place? Eh?
- That's not a bit sporting of you, mr. Hornblower.
- Well... you should hear both sides before you say that, missy.
- There isn't another side to turning out the Jackmans after you promised...
- I had been standing up for you. Now I won't.
- Oh, dear, dear. What'll become of me, eh?
- I won't say anything about the other thing, because I think it's beneath dignity to notice it...
[...]