- Gen. Edmunds: When an armed and threatening power lands uninvited in our capitol, we don't meet him with tea and cookies!
- Alien: People of Earth, attention... People of Earth attention. This is a voice speaking to you from thousands of miles beyond your planet... This is a voice speaking to you from thousands of miles beyond your planet. Look to your sun for a warning... Look to your sun for a warning.
- Dr. Russell A. Marvin: [into tape recorder] July 16, to Internal Security Commission, re: Sky Hook. Summary and progress report, from project director, Dr. Russell A. Marvin.
- Carol Marvin: And Mrs. Dr. Russell A. Marvin, without whose inspiration and untiring criticism this report could never have been written.
- Dr. Russell A. Marvin: Married two hours and already she's claiming community property!
- Carol Marvin: [in directing his attention to her neck] Now that you're married, Dr. Marlowe, you don't have to sneak up on me.
- Dr. Russell A. Marvin: You always did have eyes in the back of your head.
- Carol Marvin: Besides, it's not safe when we're driving.
- Dr. Russell A. Marvin: But pretty...
- Carol Marvin: I thought intellectual giants were supposed to be backwards and shy.
- Dr. Russell A. Marvin: My third-grade teacher, Miss Hickey, said I was a quick study.
- Carol Marvin: You're starting something you're not going to be able to finish.
- Dr. Russell A. Marvin: [sighing] Yeah. Yeah, today I've got a hot date with a three-stage rocket.
- Alien: We operate in a very different time reference. You might say all this is happening between the ticks of your watch or the beats of your heart.
- Dr. Russell A. Marvin: Both Carol and I are subject to the same atmospheric disturbances that may have affected other observers, but there is a qualitative difference, when you're a scientist.
- Brig. Gen. John Hanley: As you were, Sergeant.
- Sgt. Nash: Unidentified Flying Object reported flying due West, sir. Probably a buzzard.
- Carol Marvin: My father! What have you done to him?
- Alien: You're addressing General Hanley's mind, not General Hanley.
- Dr. Russell A. Marvin: [talking into tape recorder] To the best of my knowledge, my wife and I are the only ones left alive since we have not seen or heard from anyone for hours.
- [last lines]
- Carol Marvin: [worriedly, about the flying saucers] Russ, do you think there are any more? Will they come back again?
- Dr. Russell A. Marvin: [pulling her up from her beach chair to head to the surf] Not on such a nice day.
- Carol Marvin: [standing by the surf, staring into Russ' eyes] ... and not in such a nice world. I'm glad it's still here.
- Dr. Russell A. Marvin: It's still ours.
- [they stare into the horizon then walk into the surf]
- Alien: [while the capabilities of the flying saucers are being demonstrated to our heroes] Speed... maneuverability... and force.
- Dr. Russell A. Marvin: I always thought it was St. Elmo's Fire. I'll have to change my mind about that.
- [first lines]
- Narrator: [voice over, in an officious tone] Since biblical times, man has witnessed and recorded strange manifestations in the sky, and speculated on the possibilities of... visitors from another world. Today from the skies of California... to fields of Kansas... the rice patties of the Orient... the air lanes of the world... come persistent reports of UFOs: unidentified flying objects which we have come to know as flying saucers. In Dayton, Ohio, the Air Intelligence Command gathers and sifts data from all quarters of the globe. Ninety-seven percent of the objects prove on investigation to be of natural origin... but three percent still are listed as unknown. The Air Force is aware of the widely held belief that some of these could be flying saucers from another planet. While there is nothing conclusive in the evidence, the probing and digesting of information about UFOs continues unseizingly. As a result, headquarters of the Hemispheric Defense Command in Colorado Springs issued an order: all military installations are to fire on sight at any flying objects not identifiable. But even as they did so, the military wondered whether their scientific know how and their best weapons would be effective in any battle of...
- Narrator: [voice over continues against the movie title card] ... the Earth Vs. the Flying Saucers.