That's not what he asked you.
4 seconds sound clip from the After the Thin Man (1936) movie soundboard.
You can hear this line at 01:38:01 in the DVD version of the movie.
Quote context
[...]
- Then walk quietly out, leaving you holding the bag for Robert's murder.
- Now, do you know anyone who thinks enough of you to do that?
- You're Dancer's girl, aren't you?
- That's not what he asked you.
- Well... We got an understanding.
- Did Dancer know that you were going away with Robert?
- Go on, go on! You told us before.
- You promised you'd keep that a secret! I'll never trust a cop again!
[...]