But did you notice the way she kept looking over her shoulder all the time?

4 seconds sound clip from the Dracula: Prince of Darkness movie soundboard.

You can hear this line at 00:32:49.518 in the Blu-ray version of the movie.

Quote context

[...]

- Oh, fine, that will give Helen something else to complain about.

- It's funny about Helen this evening.

- Oh, darling, she's always the same! 2 miles outside London and nothing is ever right!

- No, this evening was different. She wasn't complaining.

- She really was frightened. She hardly touched her dinner.

- It was a damn fine dinner, too.

- But did you notice the way she kept looking over her shoulder all the time?

- Klove frightened the life out of her.

- Yes, well, he's not a particularly comforting person to have around, I'll grant you that.

- Well, I'm glad you noticed it. I thought it was just Helen and I.

- What was it about him?

- Well, I don't know really. I suppose he's a bit like the castle, he's sort of dusty. He's not particularly clean, either.

[...]