Do I know this subject of your confusion?
2 seconds sound clip from the When Worlds Collide (1951) movie soundboard.
You can hear this line at 00:26:18.020 in the Blu-ray version of the movie.
Quote context
[...]
- Joyce, dear, there isn't time for uncertainty. You have to answer this question.
- Do you want to spend what time is left with Tony, as his wife?
- I suppose it really doesn't matter.
- I don't know that, either. Oh, dad, I'm so mixed up. I can't think straight.
- Do I know this subject of your confusion?
- I don't know why, when, or where, dad.
- I've told myself I like being with him only because he's someone new, someone different.
- Yes?
- Tell Dr. Frye, and send in Mr. Stanton.
- You told me to answer the question for you, Joyce, remember?
[...]