- That's all Greek to me.
- Well, it is Greek.

— (Lon Chaney Jr.), Sir John Talbot (Claude Rains)

3 seconds sound clip from the The Wolf Man (1941) movie soundboard.

You can hear this line at 00:47:32.292 in the Blu-ray version of the movie.

Quote context

[...]

- A wolf? Where do you suppose a wolf came from?

- He might have escaped from the circus or a zoo.

- What is this story about a man turning into a wolf?

- You mean the werewolf?

- Yes, sir.

- Well, it's an old legend. You'll find something like it in the folklore of nearly every nation.

- The scientific name for it is lycanthropia. It's a variety of schizophrenia.

- That's all Greek to me.

- Well, it is Greek.

- It's a technical expression for something very simple: The good and evil in every man's soul.

- In this case, evil takes the shape of an animal.

- I can figure out most anything if you give me electric current and tubes and wires, something I can do with my hands, but these things you can't even touch...

- What's the matter with you, Larry?

- Oh... Oh, nothing, sir.

[...]