Deliberate "mistake": When Commander Taggert (Tim Allen) and Lt. Madison (Sigourney Weaver) first see the hallway with the chompers, she says, "Oh, screw that!" but if you watch her lips she clearly uses the 'f' word instead of 'screw'.
Great sites
Quotes
Sir Alexander Dane: By Grabthar's hammer, by the sons of Worvan, you shall be avenged.
Mistakes
After destroying Sarris' ship with mines, we see Guy Fleegman standing to the left by himself as the "aliens" come off the elevator to congratulate them. In the next scene, he is now standing between Alexander and Gwen. See more...
Trivia
The Thermians says that they are from the Klaatu Nebula. Klaatu is the name of the alien who visits Earth in "The Day the Earth Stood Still"(1951). See more...
Galaxy Quest (1999)
Directed by Dean Parisot, starring Alan Rickman, Daryl Mitchell, Robin Sachs, Sam Rockwell, Sigourney Weaver, Tim Allen, Tony Shalhoub (add more)
Galaxy Quest mistakes
Deliberate "mistake": When Commander Taggert (Tim Allen) and Lt. Madison (Sigourney Weaver) are about to press the blue button to stop the ship exploding, Lt. Madison's tunic is mostly zipped up. A few seconds later it is suddenly mostly unzipped. Those of you who have access to the DVD of the film can see that there was a deleted scene which was originally intended to go in here.
Factual error: Laredo drives the ship out of the starship docking station and scrapes the main hull on the walls. This would not be possible without either scraping the wings first, as they are much wider than the main ship, or turning nearly sideways, which they clearly don't.
Galaxy Quest trivia
When Sigourney Weaver and Tim Allen crawl through the air ducts to stop the ship from exploding, she complaints about going through air ducts again (Aliens), then complains about crossing over a big fan (Aliens & Alien 3).
The Thermians says that they are from the Klaatu Nebula. Klaatu is the name of the alien who visits Earth in "The Day the Earth Stood Still"(1951).
The film's script originally contained a mention of Alexander Dane having been knighted by Queen Elizabeth. Alan Rickman asked that this be changed because he believed it was inconsistent with the character, and all mentions of the knighting were removed; however, the character remains listed as "Sir Alexander Dane" in the credits
Galaxy Quest quotes
Sir Alexander Dane: I played Richard III.
Fred Kwan: Five curtain calls...
Sir Alexander Dane: There were five curtain calls. I was an actor once, damn it. Now look at me. Look at me! I won't go out there and say that stupid line one more time.
[Guy is panicking - as he's the only generic crew member onboard, he think's he's certain to die.]
Lt. Madison: Guy, you have a last name!
Guy Fleegman: DO I?! DO I?! For all you know, I'm just CREWMAN NUMBER 6!
Guy Fleegman: I'm not even supposed to be here! I'm just "Crewman Number Six"! I'm expendable! I'm the guy in the episode who dies to prove how serious the situation is! I've gotta get outta here!