Oh, don't thank me. I ought to thank you, really.
5 seconds sound clip from the Ruggles of Red Gap (1935) movie soundboard.
You can hear this line at 00:09:07 in the Blu-ray version of the movie.
Quote context
[...]
- I hope you will enjoy it, my lord.
- Oh, yes.
- Yes, well well, goodbye. And look after yourself and all that sort of thing.
- Yes, my lord. Thank you, my lord.
- Oh, don't thank me. I ought to thank you, really.
- Well, so long, Earl. Keep your head up.
[...]