- Any of you guys know a blonde in a white T-Bird?
- I know her. What about it?
- I'm trying to find out, you know, who she is.

10 seconds sound clip from the American Graffiti movie soundboard.

You can hear this line at 01:14:46 in the Blu-ray version of the movie.

Quote context

[...]

- Oh, race him. You can beat him.

- Hey, that's a tough-looking girl you got with you, man. What are you doing? Trying to pick up a few extra bucks babysitting?

- Hey, doll, why don't you come on, and ride with me... in about 10 years?

- Now, leave her out of this. This is just between you and me.

- Wow. He's really fast, isn't he?

- Yeah, but he's stupid.

- Any of you guys know a blonde in a white T-Bird?

- I know her. What about it?

- I'm trying to find out, you know, who she is.

- She's out of your price range, man. My brother's been out with her. He clued me in...

- Price range? Are you trying to tell me that she's a prost...

- That's right, she's a $30 Sheri.

- Jesus. Can you imagine that? Thirty bucks for that broad.

- We got to be thinking about two different broads.

[...]