This is too good to be true, Slim.

2 seconds sound clip from the Criss Cross (1949) movie soundboard.

You can hear this line at 00:07:07.573 in the DVD version of the movie.

Quote context

[...]

- Hey, I thought Mr. Thompson was a friend of yours.

- Ah, let them punch their heads off. I give it up. I don't care anymore.

- You always wanted to get Slim Dundee. Now is your chance.

- What do you mean?

- He's got a knife on him. I didn't say nothin'. Now remember that.

- Just a friendly argument, Lieutenant. Just scufflin' around.

- This is too good to be true, Slim.

- I was hoping to get something on you before you left town.

- This is just between me and Dundee. I'm not swearin' on any complaints.

- You sure you know what you want to do?

- This is just between him and me.

[...]