Wouldn't it be nicer if we could live at peace with each other?

4 seconds sound clip from the Robot Monster (1953) movie soundboard.

You can hear this line at 00:09:46.280 in the Blu-ray version of the movie.

Quote context

[...]

- I want to say that I certainly hope to see you real soon in this very same theatre. So, God bless you. We'll see you. Now, on with the show.

(bells)

- Am I dead?

- You're disintegrated.

- Good. Does that mean we can play house now? You promised.

- These woods are full of spacemen. It's either them or us. Come on.

- Spacemen, you must die!

- Did you say something?

- He says we must die.

- Well, if you insist. But come here.

- Wouldn't it be nicer if we could live at peace with each other?

- Okay, I'll be from a friendly planet.

- Good. Does that mean we can play house now?

- No.

- I'm friendly, but I still have to find out what they're doing here.

- We are archeologists, boy, people who try to find out what men were like way back before they could read or write. The only way to pass on what they knew was through pictures like this one.

[...]