Yeah I know. It has become so ingrained in our culture, when we hear someone use a phrase like "Jedi instinct" we hardly even think twice about it. I hear the words "Jedi" and "darkside" used all the time in the real world far outside the context of Star Wars.

The other day one of my more crass co-workers was talking about a girl and said, "She has a cute face, but a body like Jabba."

Back when I was in university, a kid was giving a presentation on an ancient Greek city that was historically known for being a very corrupt and bad place, when he was explaining what a awful place it was, he used the phrase, "I guess you could say you'd never find a more wretched hive of scum and villainy". Most of us in the class room, including the professor had a little chuckle and the presentation went on.

I cannot think of another movie that has had such a severe cultural impact. Casablanca and Monty Python and the Holy Grail are about the only two films I hear referenced anywhere near as much as Star Wars in everyday speech. The Wizard of Oz might fit in there too though, I hear it referenced quite often, and I think every now and then we all catch somebody whistling "If I only had a brain".