- Dr. Judson Uhl: You better tell them we're in a hurry and to roll up the red tape and put it into a drawer until this thing is over!
- [last lines]
- Dr. Judson Uhl: Why is it always, always so costly for Man to move from the present to the future?
- Mondello: He drives a truck with a house that follows him around like a goat.
- Maj. Gen. A.D. McIntosh: A trailer?
- [on the plan to capture the alien creature with a huge net]
- Col. Robert Calder: Doc, this is like a parachute. It's got to work the first time!
- [opening narration]
- Narrator: Great scientific advances are oftentimes sudden accomplished facts before most of us are even dimly aware of them. Breathtakingly unexpected, for example, was the searing flash that announced the atomic age. Equally unexpected was the next gigantic stride when Man moved out of his very orbit to a point more than 20 million miles to Earth.
- Maj. Gen. A.D. McIntosh: What I have to say you will find incredible- but true. Colonel Calder here has just returned from an expedition to Venus.
- Contino: To Venice?
- [Turning to Charra]
- Contino: Perhaps you mean Venezia?
- Col. Robert Calder: [Impatiently] To Venus! The planet Venus!
- Col. Robert Calder: [Seeing the Ymir for the first time] Incredible! The creature has to be taken alive!
- [first lines]
- Mondello: Pepe! Is it your desire that the fishes, they swim away? Come on! Pull up on the net, here.
- Maj. Gen. A.D. McIntosh: Some of you may also have heard the story of a monster now confined here in Rome Zoo. That beast is from Venus. It is an essential object of scientific study if man is to survive the atmosphere on Venus, poisonous to humans.
- Marisa Leonardo: Colonel?
- Col. Robert Calder: Yeah?
- Marisa Leonardo: I hate to intrude on your precious private thoughts but I'd like to change the bandage on your arm.
- Col. Robert Calder: Oh.
- Marisa Leonardo: You're worried about what happened today. About where the creature is tonight, aren't you?
- Col. Robert Calder: We'll find him. We've got to.
- Marisa Leonardo: Guess I've been pretty inconsiderate and self-centered. You've got a lot on your mind.
- Col. Robert Calder: If that's an apology I think it went in the wrong direction. All you've done is try to help. All I've done is snarl at you. I hope when this is all over, you'll let me try to make it up to you - over a table for two in a dark café.
- Marisa Leonardo: With a candle burning on the table?
- Col. Robert Calder: And a bottle of wine.