Sometimes we all need an escape. We grow weary of the world in which we live, and we'd love to trade it for another. We're tired of existing here, with our boring jobs and our boring apartments and the same "easy 30-minute dinner recipe" we make every weeknight. We'd rather be somewhere exciting, with flying spaceships, strange creatures, and talking robots. This is why we turn to cinema. This is why we dim the light, pop the popcorn, and let our minds be taken away for a while.
For 2 hours, we can forget that our name is Terry and we live in Pacoima. We can pretend that our name is Luke and we have a special destiny awaiting us. Or we can pretend our name is Chewbacca and let out a great big, throaty roar. And then as the credits roll, we can take a little bit of that universe with us to keep us company.