Look, I came back to 1955 again with you, the you from 1985, 'cause we had to get a book from Biff!

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

You can hear this line at 00:06:47.607 in the DVD version of the movie.

Quote context

[...]

- Doc, calm down, okay? Just calm down. It's me. It's Marty.

- No, it can't be you! I sent you back to the future!

- That's right, Doc. That's right, but I came back again. I came back from the future.

- Don't you remember last night? You fainted. I brought you home.

- This can't be happening! You can't be here! It doesn't make sense for you to be here! I refuse to even believe that you are here!

- Doc, I am here, and it does make sense.

- Look, I came back to 1955 again with you, the you from 1985, 'cause we had to get a book from Biff!

- So once I got the book back, you, that is the you from 1985, were in the DeLorean, and it got struck by lightning, and you got sent back to 1885!

- 1885?

- It's a very interesting story, future boy, but there's just one little thing that doesn't make sense.

- If the me of the future is now in the past, how could you possibly know about it?

[...]