- God, Jennifer, damn. I hope she's all right, Doc. I can't believe we just left her there on the porch.
- Don't worry, Marty. She'll be fine.

7 seconds sound clip from the Back to the Future Part III movie soundboard.

You can hear this line at 00:37:21.331 in the DVD version of the movie.

Quote context

[...]

- Well, Doc, now we know who Clara is.

- Marty, it's impossible. The idea that I could fall in love at first sight is romantic nonsense. There's no scientific rationale for that concept.

- Aw, come on, Doc. It's not science. You meet the right girl, it just hits you. It's like lightning.

- Marty, please don't say that.

- That's the way it was for me and Jennifer. I mean, we couldn't keep our eyes off each other.

- God, Jennifer, damn. I hope she's all right, Doc. I can't believe we just left her there on the porch.

- Don't worry, Marty. She'll be fine.

- When you burned the almanac in 1955, the normal timeline was restored.

- That means once we're back in 1985, you just have to go over to her house to wake her up.

(STEAM WHISTLE BLOWING)

- Oh, Marty, turn that valve over there all the way to the right. Yeah, pull it all the way around. Okay. Let's go!

[...]