- Well, then certainly he ought to know.
- No, because if he found out, he'd want to do something about it.
4 seconds sound clip from the Love Affair (1939) movie soundboard.
You can hear this line at 01:09:57.760 in the Blu-ray version of the movie.
Quote context
[...]
- Well, the show's over. The boy got the girl. Shall we go?
- Seems terrible taking you home with everybody going out.
- I'm going to ask you once more. Why don't you let me help you?
- Well, then certainly he ought to know.
- No, because if he found out, he'd want to do something about it.
- No, unless I can walk to him one day... and when I say walk, I mean run... he'll never know.
- Well, thank you, Lois. Good night.
- Are you sure you don't want to come with us? The evening is so young and everything.
- No, I think I'll turn in. Some other time.
[...]