the time i saw star wars

It was to much after walking around for about an hour.  I can't even describe what was happening.  I was a child seeing Star Wars for the first time.  The opening scene was enough to blow any kids mind.  You have what looks like this big spaceship flying across the screen and it's getting shot at.  Then you see a Star Destroyer!  That thing makes the big spaceship look small all of a sudden.  As I kid you don't know how to react.  You jaw just drops open and your like "what?!"  My mind is so confused I feel like I'm ten again.  At one point I'm sure I saw people walking by me just disappear into thin air and then see other people appear out of thin air.  I saw some people I could see through.  It was like they were there, but they weren't there.  How can that be?  How can someone be one place and not be there at the same time?

Do you see?  I must be going crazy.

What other explanation could there be?