YMMV / Flight of the Navigator

  • Awesome Music: Alan Silvestri's score, if you like '80s instrumental synth stuff, at least.
  • Dueling Movies: With Explorers (even though Explorers came out the year before).
  • Ending Aversion: Many critics agree that the film's first half is far superior to its second, with a very intelligent script that kids can still get invested in thanks to David reacting to everything just like they would. Then he enters the spaceship and it turns into a generic kiddie adventure film.
  • Fridge Horror:
    • Do you really think whoever coordinates the Trimaxion Drone Ships (The Trimaxions, maybe) will be perfectly fine with one of their dispassionate, calm Drone Ships acting like a twelve-year-old human child after it scanned one? To them, TDS #5334 is simply dangerously malfunctioning and and will need to be restored to factory defaults.
      • This assumes the Trimaxions are cold and dispassionate themselves, and treat their drone ships like nothing but hardware. Why assume that? It's just as likely they'll be highly amused by the ship's new personality. Or at least decide "Hey, the ship is now mentally a lot like one of these 'humans'. We can learn a lot about them from Max!"
      • The Trimaxions may all be Mechanical Lifeforms like Max. Besides which, if they place so much importance on benignly studying biological lifeforms, they may also find the memories and experiences of other sentient species to be worthy of study.
    • Also consider Carolyn McAdams and her likely future. It's pretty evident when David escapes that the higher-ups believed she helped him escape. At best, she likely underwent quite a bit of uncomfortable interrogation from various Three Letter Agencies. At worst, she was likely thrown into a cell for the rest of her life (at least up until time gets reset by David going back).
    • Depending on how time-travel works in the setting, the timeline where he disappeared and never came back could still exist. His parents and brother saw him briefly, then he left to go back to "his own time" and entered another timeline, so they never saw him again.
    • Pukmaren stowing away in David's backpack at the end. It's an alien-creature with unknown biology. What does it even eat? We can't assume that all aliens can eat hats like the other one aboard the ship. For all we know, the poor little thing could be dead within a week!
  • Retroactive Recognition: Sarah Jessica Parker played Carolyn, a NASA intern who befriends and helps David.
  • Squick: A "very unpleasant little creature".
  • Tear Jerker:
    • David and Max's goodbye.
    • David's heartbreakingly realistic reaction to coming home and realizing it suddenly isn't his home anymore:
    David: *crying* "Please... Where's my Mom and Dad?"
    • David's goodbye to his family when he decides to return to his time.
  • They Changed It, Now It Sucks: After Max gets his data back, along with a good helping of David's personality, he makes continuous pop culture references and becomes a robotic Pee-Wee Herman.note  Many preferred the original Spock Speaking Max.
  • They Wasted a Perfectly Good Plot: It's not to say the film is a waste, as it were, but the initial premise of a child locked out of time for eight years and reuniting with his family could easily support its own movie.
  • Visual Effects of Awesome: The Trimaxion Drone Ship looks nearly as amazing today as it did in 1986.
  • Ugly Cute: Puckmaren.