SCA: The real-life inspiration for 'Knightriders'
www.sca.org
The Society for Creative Anachronism (SCA) is a group of medieval reenactors that was founded in the late 60's. To date, it's got chapters all over the world, and about 45,000 "official" members. (If you include the "unofficial" members---people who participate regularly, but are neglectful in keeping their dues up-to-date---the real figure's more like a million.)
When the group had been around about 15 years, it is reported that Mr. Romero attended an SCA event and was intrigued. He wanted to base a movie off of the lifestyle, the philosophy, and the amusing culture-clashes that SCAdians encounter, and sought the group's official cooperation in making it.
But the SCA board of directors was too afraid of being misrepresented. (The early 80's was when there was a lot of bad press concerning "Dungeons and Dragons." People who wore funny medieval costumes, and swung swords, might be connected to everything from devil worship, to drugs, to suicide-cults.) So they politely declined.
Romero shrugged, tweaked a few details---the 'cycles, the unsafe-as-hell weapons and inadequate armor---and made the movie anyway.
If you REALLY liked this movie you might want to check out "Knight Fall" (formerly "Murder at the War") a book by Monica Ferris. It's a murder-mystery, situated at one the SCA's biggest annual gathering.
The murder is fictional. The event is real.
More info at: http://monica-ferris.com/Knight.htm