- Precedent in our own evolution makes it possible that they have more than one brain.
- You mean two? Three?

8 seconds sound clip from the The War of the Worlds (1953) movie soundboard.

You can hear this line at 00:22:44 in the DVD version of the movie.

Quote context

[...]

- Then you think they'd be breathing creatures, like us.

- What about the heart and blood and all that?

- Well, if they are Martians, and if they do have hearts, they'd almost certainly beat at a slower rate. Their veins might be distended.

- Their senses could be quite different from ours.

- They may, for instance, be able to smell colors.

- Precedent in our own evolution makes it possible that they have more than one brain.

- You mean two? Three?

- Just think of that, folks.

- It's only speculation.

- Now, Dr. Forrester, what about these meteor machines?

- They're probably controlled by jets after they enter our atmosphere and navigated by some form of gyroscopic mechanism.

[...]