If I can win you over, there's still hope. If not, then I guess I'm through.
8 seconds sound clip from the Miracle on 34th Street (1947) movie soundboard.
You can hear this line at 00:30:21 in the Blu-ray version of the movie.
Quote context
[...]
- Oh, Christmas isn't just a day. It's a frame of mind. And that's what's been changing.
- That's why I'm glad I'm here. Maybe I can do something about it.
- And I'm glad I met you and your daughter. You two are a test case for me.
- We are?
- Yes! You're sort of the whole thing in miniature.
- If I can win you over, there's still hope. If not, then I guess I'm through.
- But I'm warning you, I don't give up easily. Good night.
- Oh! Oh, Mr. Kringle. The first thing in the morning, would you report to Mr. Sawyer's office?
- Yes, he'll just give you a little examination. Oh, we do it with all our employees.
[...]