Whatever are you talking about?
4 seconds sound clip from the White Christmas (1954) movie soundboard.
You can hear this line at 00:39:12 in the Blu-ray version of the movie.
Quote context
[...]
- After you dressed me up like a dame, you get me involved with a sheriff.
- I almost lose my life trying to catch a train.
- You wouldn't do this to old Bob, would you?
- Whatever are you talking about?
- Oh, Mr. Wallace, how can we ever thank you?
- It was really so sweet and generous of you.
- Mr. Davis told us you insisted on giving us the tickets, and, well, it was just wonderful of you.
- Wasn't there something you... wanted to say to the girls?
- Yeah. Won't you have a drink or a sandwich or something?
[...]