Don't be silly. It's to your credit that that charade failed.
5 seconds sound clip from Batman (1966) - He Meets His Match, the Grisly Ghoul (S1E16) TV Series.
You can hear this line at 00:15:12 in the Blu-ray version of the movie.
Quote context
[...]
- Holy hailstorm. You knew this was gonna happen.
- Nick must've seen you were working hand in hand with the police.
- Don't be silly. It's to your credit that that charade failed.
- The thing now is to save Susie.
- Work it out. Why would an undercover agent try to pump her?
- Because I knew she was one of the gang.
- Right.
- And once they know that we know that young lady's life isn't worth a plugged lollypop.
- Holy murder! We gotta find her quick.
[...]