- Stop it.
- You don't believe that?
- Certainly not!
- Well, I saw it.

6 seconds sound clip from the Abbott & Costello Meet Frankenstein movie soundboard.

You can hear this line at 00:27:20 in the Blu-ray version of the movie.

Quote context

[...]

- That's why we were arrested and thrown in jail.

- Do you realize that we've spent a whole day and night in jail? And we'd still be there if some dame hadn't've bailed us out.

- Now stop calling Sandra a dame!

- And I'm tellin' ya, they were there.

- Oh, stop.

- Two of 'em.

- One of 'em was about eight foot tall. Way up there! And he walked like this... Just like that... Now, that's the way he walked.

- Stop it.

- You don't believe that?

- Certainly not!

- Well, I saw it.

- And the other one, he went like this. And he kept gettin' closer and closer.

- He had eyes that were balls of fire. He kept staring, eye to eye. Eye to eye! Staring!

- I never saw anything like it in my life. Believe me when I tell you I was scared to death. Really I was. I was really scared, Chick.

- What's the matter? Chick? What did I do?

[...]