The New Adventures of Galaxy Quest are realSince it turned out that the interstellar community really does resemble the Galaxy Quest 'verse, the cast just took off in the spaceship in search of adventure, with a camera crew present to record "historical documents".
The computer is the Midnight Entity and has a weak hold on GwenHence each feels compelled to repeat the lines of the other, with some paraphrasing.
The Thermians have a Waaagh field.This is why their society has no concept of lying - their beliefs shape reality. It's also why they could build a spacecraft using specifications from a television series that ran for four years and not only have it work, but have it work well, and build a working time machine using the same principles.
The US government knew of the ThermiansThe United States of America knew alien threats existed out there. They knew Thermians liked Galaxy Quest and could build starships. The US of A guided the show and the fandom so it turned out like it did; and hey, at the end, they got a whole bunch of alien technology. Sure, just the escape pod, but the circuitry in the walls and the life support system are probably worth trillions. It also explains why a literal alien got a major role in a television show...
Jason Nesmith is responsible for the Thermian GenocideHungover, tired, and convinced he's just doing a bit for some fans, attacks Sarris's ship during the meeting that was supposed to be the Thermian's surrender. He alerts his superiors, who use it to justify wiping out the Thermian homeworld and possibly the Thermian space station. Because of Jason, an entire race will likely die out.
The movie is set in the same universe as Men in BlackExpanding on the third WMG from the top, the government actually did not know of the Thermians, but MIB did. Because the Thermians had transportation technology on par with the Star Trek transporters MIB had no way of tracking or preventing them from abducting the Galaxy Quest cast. At the end of the movie when the ship crashes into and destroys a large portion of the convention hall MIB confiscates the ship and neuralizes everyone in attendance. Because of this the Galaxy Quest cast are all deputized by MIB. Galaxy Quest has become part of the curse, affecting how the counting works.
Alexander was screwed out of his earnings from the show's first runPay attention to the differences between his home and those of Gwen and Jason. They both live in (presumably) expensive houses, in nice areas, and very nicely decorated. Alexander, on the other hand, lives in less-nice house in a crappier part of town (as evidenced by the sound of police sirens in the background while he's talking with Gwen). He was one of the leads on the show; why can't he afford to live as nicely as Jason or Gwen? Either because he never earned as much as they did (a depressingly common phenomenon with British actors until the beginning of the 2000s), or because his financial manager mishandled his money.
Most Writers Are Human, but at least one that wrote the original Galaxy Quest episodes was notIf one or more of the writers already knew about the super-advanced technology that the Protector runs on, it would be easy for the Thermians to duplicate.
The "Space Station" the Protector debarks from is actually the remains of the Thermian homeworldIf you look carefully at the outside of the station as the Protector is flying away, you'll notice it looks like an asteroid or something similar, shaped vaguely like an apple core. It could be that it was actually the home of the Thermians, and that is all that's left after Sarris was done bombing the living hell out of it.
The Invention of Lying is set in the future of the Thermian race.They found a new planet and settled in, and are still using holographic simulators to be people or figured out how to become biological humans.
The previous Thermian commander built the Omega 13 but didn't tell anyone what it actually did.The Thermians' former commander (who was tortured to death by Sarris) was the first Thermian to adopt Galaxy Quest as the foundation for their society and spearheaded the design and engineering of the NSEA Protector. He was brilliant and charismatic in ways that made him the Thermians' natural leader. Like Brandon, he figured out what the Omega 13 was designed to do and built it to those specifications.
Guy really didn't have a last name until Jason gave him oneIt's been noted that even though Jason doesn't have a clue what Guy's last name is on the shuttle ride, he calls him "Fleegman" once they're on the surface. Perhaps Jason, either buying into Guy's Wrong Genre Savvy and or else just to shut him up, comes up with the name Fleegman off the top of his head so that Guy will have Nominal Importance. It's possible that with quick thinking Jason actually saved Guy's life there.