I saw Star Wars in theatres with the family. I only have vague emories of it, but distinctly remember playing light sabre with the wiffle bats afterwards :-) I was only 4 when Star Wars was released, so my memories weren't very distinct.
But they were there! I was watching Saturday morning cartoons with my brother when all of the sudden there were spaceships flying around Asteroids in a trailer for "The Empire Strikes back." I remember running with my brother to find the folks and informing them that the new movie was out. I remember it was a warm day, and that the folks were outside gardening, but mainly I just remember being really, really excited, even though i only vaguely remembered the first one.
I'm pretty sure we saw Star Wars in theatres again before we went and watched Empire. I'm vague on that, though, and I wouldn't swear to it, but I do know I saw Star Wars in theatres either before Empire or Return of the Jedi. I remember because after going to the movie I went with my dad to his work, I drew the Jawa Crawlers. I had forgotten them, but was entranced by their size.
Keep in mind to, this was before VCRs acheived ubiquity. So there weren't a whole lot of options for seeing a movie that had been in theatres othewise.
So that's my tale. Empire will always have a special place because it is the earliest movie I can remember being excited to go see. It also reminds me that, back then, well before the internet, most people really weren't aware that another Star Wars was going to be coming out until they started with the advertisements.
Now you can't help know that one is coming out before they've even shot it!