Star Wars is ubiquitous.
“May the force be with you.” Is a phrase known across the globe. Culturally relevant to a slightly lesser extent, but on a similar scale, is the concept of the dichotomy between the Light and Dark sides of the Force. As the central magical conflict in the Star Wars franchise, it is the quintessential good vs. evil struggle that casts the setting solidly in a fantasy mold.
However, there is depth there that is generally unexplored in regard to the Jedi vs. Sith: I like to think that the Star Wars force conflict has been subject to overt and egregious Jedi propaganda manipulation.