I can't get it into my head.

2 seconds sound clip from the The Shop Around the Corner (1940) movie soundboard.

You can hear this line at 01:32:07.052 in the Blu-ray version of the movie.

Quote context

[...]

- Maybe, maybe we'll both be engaged Monday morning.

- I think we will.

- Well, I don't want you to misunderstand me. I just said in my case it might happen.

- Well, as a matter of fact, I can tell you, it will happen.

- How do you know?

- Well, we won't go into that.

- Mr. Kralik, what do you mean you know?

- Well, I guess I might as well tell you. He came to see me.

- Who?

- Your fiance. Yes, yes, he came last night. You shouldn't have told him who I am. I spent a very uncomfortable hour.

- Apparently, he didn't believe it when you wrote that I meant nothing to you.

- I can't get it into my head.

- Coming to see you? Oh, no, that doesn't sound like him at all.

- Well, now, listen, I've straightened everything out. Yeah, you don't have to worry.

- In a little while you'll be Mrs. Popkin.

- Mrs. Popkin?

- That's the name, isn't it? Popkin. That's the name he gave me.

- Oh, yes, that's right. Popkin. Popkin.

- And a very nice fellow. A very nice fellow. I congratulate you.

- Thank you.

[...]