You certainly know a great deal about space travel, son.
5 seconds sound clip from the Santa Claus Conquers the Martians (1964) movie soundboard.
You can hear this line at 00:47:19 in the Blu-ray version of the movie.
Quote context
[...]
- Well, where's the control that opens the door?
- Not here. That's in the control deck.
- You see, once you pull that switch, the warning bell sounds, and in 60 seconds, that door opens.
- That's to give the spaceman a chance to make a final check on their equipment.
- You certainly know a great deal about space travel, son.
- He wants to be a spacemen when he grows up.
- 60 seconds. That must be the door timer.
[...]