It's easy to forget that before 1977's "A New Hope" (called simply "Star Wars" at the time), sci-fi wasn't looked at in quite the same way. Anthony Daniels, who has played C-3P0 since the beginning, didn't quite get it at first either.
Star Wars' Anthony Daniels Was 'Insulted' By The Offer To Audition For C-3PO
A world without "Star Wars" is an odd one to contemplate if it's been around for your entire life. If "Star Wars" didn't exist and someone pitched a story set in space where a princess is kidnapped, a man in sort of Samurai helm is blowing up planets, a farm boy saves the world, and two robots (yes, they're "droids," but before we knew that) team up and become besties, you'd think it was weird, too. Anthony Daniels, who has played C-3P0 since the beginning, didn't quite get it at first either.