In an interview with Cinescape George Lucas explains the complicated storytelling of his Star Wars films. You can read the complete article at Cinescape.
â€œWhenever you talk to an author and somebody that writes, they write this back-story, [and itâ€™s] basically character driven,â€ Lucas said. â€œWhat youâ€™re doing is setting up who your characters are. Obviously there are a lot of technical issues going on. I had to get somewhere. Okay, this is the father; these are the kids. Where the hell did they come from? In [PHANTOM MENACE], I was dealing with the beginning. I was dealing with a lot of issues a lot of fans didnâ€™t want to hear about â€“ symbiotic relationships and things. The public yawned and people werenâ€™t ready for it when I said Anakin was basically created by the midichlorians, which is a spiritual, symbiotic idea. In that case I was talking much further back, indicative of all creation. At the same time, it is inevitable we would get to the love story. It is inevitable that, letâ€™s face it â€“ Padme is going to get pregnant.â€
He added, â€œI knew when I made the film a lot of fans werenâ€™t going to like this because I wasnâ€™t making the movie they wanted. They wanted me to start with EPISODE II. They wanted to see Jedis fighting; they wanted to see battles. They wanted to see THE MATRIX. I knew that I was telling a story that I wrote 30 years ago and I had to start at the beginning and I had to do all the groundwork, which means you have to lay all the pipe for the world you are creating.â€