What are we gonna say? That we're time travelers? They'd have us committed.

Dr. Emmett Brown (Christopher Lloyd)

3 seconds sound clip from the Back to the Future Part II movie soundboard.

You can hear this line at 00:25:29.036 in the Blu-ray version of the movie.

Quote context

[...]

- McFly, Jennifer Jane Parker, 3793 Oakhurst Street, Hilldale, age 47.

- Forty-seven? That's a hell of a good face-lift.

- What the hell are they doing, Doc?

- They used her thumbprint to assess her ID. Since her thumbprint never changes over the years, they simply assume she's the Jennifer of the future.

- Well, we gotta stop them.

- What are we gonna say? That we're time travelers? They'd have us committed.

- She's clean. That means we take her home.

- Home? To Hilldale? It'll be dark by the time we get out there.

- That's it. They're taking her home. To your future home!

- We'll arrive shortly thereafter, get her out of there and go back to 1985.

[...]