Goof: When George is lying down with a boulder on top of him for the pressure test, a couple of faraway shots show his sleeves the same color as the life jacket. This is also seen when the French TV reporter is holding a picture of him.
Reporter: In a moment, 200 tons of force will crash down on him, and does he care?
George: Uh-uh! (the pile driver smashes the boulder that's placed on top of the life jack he's wearing, crumbling it to pieces, leaving him unscathed)
Spacely: How was it, Jetson?
George: This is the first time I've had a jacket pressed while I was wearing it.
Spacely: Ready for the thermoelectric resistance test?
George: (strapped to a chair) Ready!
Professor Lunar: Wait, wait! (hands George a long fork with a hot dog wiener attached) Hold this while I throw the switch (zaps him with electricity) Whoopee! I say, it's a success!
George: What's this for?
Professor Lunar: (taking back the fork with wiener) For lunch. What else?
George: Now hear this! Everything--Everything you all bought goes back to the store.
Jane: But George, you said our ship had come in.
George: It sunk!
Spacely: Jetson, where are you going?
George: To Cogswell Cogs to see about a job.
Spacely: You mean you'd work for Cogswell after all this? You'd forget your pride and go crawling to him for a job? You'd do that for a few measly dollars a week?
George: Uh-huh! (runs out)
Spacely: Wait for me, Jetson! I'll go with you! (also runs off)