That is, if you can do what you said you could.

3 seconds sound clip from the Lady Gangster movie soundboard.

You can hear this line at 00:45:38 in the DVD version of the movie.

Quote context

[...]

- That's the way to take it, dearie. It'll all work out for the best later, I'm sure.

- Will you tell Mrs. Stoner to get Mr. Phillips here?

- I'll tell him where the money is, if they approve my parole.

- Oh, so it's money you would give them? Well, if that's the way it is, I'll tell her. But it's no way for anyone to get a parole.

- Have you gone crazy?

- Not me. I'm gonna outsmart 'em.

- That is, if you can do what you said you could.

- What's that? Get a letter out? That's easy.

- That settles it, then.

- When Ken Phillips gets that money, he'll think he was bombed by a flying fortress.

- All I want you to do is see that he gets what he deserves for double-crossing me, DB.

[...]