It wasn't long after I began writing Star Wars that I realized the story was more than a single film could hold. As the saga of the Skywalkers and Jedi Knights unfolded, I began to see it as a tale that could take at least nine films to tell - three trilogies - and I realized, in making my way through the back story and after story, that I was really setting out to make the middle story.

I have a lot of ideas and I want to be able to work. To me, it's like one of these contests where you get five minutes in a supermarket to take anything off the shelves you want and try to fill your cart up as much as you can. That's the way I look at my work.

I felt that one of the major issues in the third film is that Luke is finally on his own and has to fight Vader and the Emperor by himself. If you get a sense that Yoda or Ben is there to help him or to somehow influence him, it diminishes the power of the scene.

When Star Wars became a hit and I had a chance to make the other movies, I had to figure out a way to bring Ben back, but a lot of the issues he had to deal with were carried by Yoda. In a sense, I combined Yoda with the spirit of Ben. I wanted Ben to have some kind of influence, but I didn't want it to be a direct influence where he could help Luke. So Ben has managed to keep his identity after he became one with the Force. One of the things he was doing on Tatooine besides watching over Luke was learning how to keep his identity after he became part of the Force.

Most organisms either adapt and become part of the system, or get wiped out. The only thing we have to adapt to the system with is our brain. If we don't use it, and we don't adapt fast enough, we won't survive.

I loved photography and everybody said it was a crazy thing to do because in those days nobody made it into the film business. I mean, unless you were related to somebody there was no way in.

The first script was one of six original stories I had written in the form of two trilogies. After the success of Star Wars, I added another trilogy. So now there are nine stories. The original two trilogies were conceived of as six films of which the first film was number four.