!!The Franchise
* WhatCouldHaveBeen: GeorgeLucas tried to get the rights to ''Flash Gordon'' to make his own movie. When blocked by [=Dino DeLaurentiis=], Lucas decided to [[StartMyOwn make his own]] [[Franchise/StarWars space adventure series]].

!!The film
* AllStarCast: Creator/BrianBlessed, Creator/MaxVonSydow, Creator/TimothyDalton and many other 80s stars packed and ready.
* AmericansHateTingle: The movie didn't do great in the US, but it was a mega hit in Great Britain. So much so that it's considered a classic there.
* BeamMeUpScotty: Ming never actually says "Pathetic earthlings, who will save you now?" Except in the {{trailer|sAlwaysLie}}.
** Ming does say "Pathetic earthlings", a '''lot'''. (ie. "Pathetic earthlings, hurling yourself out into the void...")
* DoingItForTheArt: Playing Vultan was Creator/BrianBlessed's lifelong dream.
* DyeingForYourArt: Sam J. Jones' dark hair was bleached blonde for this role, and Melody Anderson's blonde hair was dyed brown. Flash was also supposed to have blue eyes, but Sam could not wear the contact lenses.
* PromotedFanboy: Creator/BrianBlessed has admitted in interviews that when he and his brother used to play a game based on the TV series he always wanted to be Vultan. Decades later he got to play the same childhood game on the big screen.
* StillbornFranchise: The actors signed up for a trilogy of films a la ''Franchise/StarWars'', and there was a spinoff children's TV show.
* ThrowItIn:
** Flash jumping into the camera screaming "YEAH!" was an improvisation by Sam Jones, as nobody could figure out how to end the movie.
** Melody Anderson came up with Dale's cheerleading during the football fight.
** Creator/BrianBlessed improvised the scene where Vultan gooses Dale. Melody Anderson's reaction is genuine.
* VindicatedByCable
* WhatCouldHaveBeen:
** The first draft of the script had, among other things, no Kala, Klytus being psychic, a Tiger Man aiding Flash, Ming having a group of Amazon warriors, and a proper swordfight between Flash and Ming.
** Directors considered for this film included Creator/SergioLeone, Creator/FedericoFellini and [[Film/TheManWhoFellToEarth Nicholas Roeg]].
** All actors were signed for three movies, but problems with star Sam J. Jones during post-production (which led to SameLanguageDub) pretty much killed the trilogy.
** Dino De Laurentiis originally wanted Creator/KurtRussell to play Flash. He turned it down, because he thought the character was lacking in personality.
** Creator/ArnoldSchwarzenegger was turned down for the lead role because of his impenetrable Austrian accent.
** Mike Hodges considered commissioning Music/PinkFloyd to compose the music.
** Creator/DennisHopper was considered for Dr Zarkov.
** A cut scene had a dream sequence where Dale turns into a giant spider.
** In the original script, when Flash is sentenced to death by Ming, Dale bursts out that Ming is "absolutely merciless". Ming is enthralled with the description, and immediately starts calling himself "Ming the Merciless".
** In the original script, Flash and Dale first meet at a Canadian resort called Dark Harbor. Although they flirt with each other, they don't become acquainted until they're sharing the ill-fated plane ride to New York City. Dale later talks briefly about Dark Harbor during her tear-filled meeting with Flash before his execution.

!!The 2007 series:

!!The pinball:
* DuelingGames: With Creator/WilliamsElectronics' ''Pinball/BlackKnight''.