Best sci-fi movie quotes of 1951

Klaatu: I'm worried about Gort. I'm afraid of what he might do if anything should happen to me.
Helen: Gort? But he's a robot. Without you, what could he do?
Klaatu: There's no limit to what he could do. He could destroy the Earth.

Hendry: Wait a minute, Scotty. You won't need any boots. When it comes you go back with the others. You don't belong out here.
Ned "Scotty" Scott: I didn't belong at Alamein or Bougainville or Okinawa. I was just kibitzing. And I write a very good obit, a obituary to use.

Joyce Hendron: He'll be home the day after tomorrow.

Bud Alexander: I'll have the lambchop luncheon.
Lou Francis: Um, I know what I want. Spaghetti.
Tommy Nelson: And a steak.
Waiter: [to Lou.] What do you want?
Lou Francis: Spaghetti.
Tommy Nelson: And a steak.
Waiter: [to Lou.] You said you knew what you wanted. Do you want spaghetti or steak.
Lou Francis: I'll have a spaghetti.
[Then Lou immediately raises his hand to signal Tommy not to speak.]
Lou Francis: [to the waiter.] And a steak.

Sir John Kierlaw: Now. Some fool has invented an indestructible cloth. Where is he? How much does he want?