I guess there are actually three stories. They're a bit woven together.
I wrote my first book, and then the sequel to my first book, and then I wrote a kind of sequel to that, being a look at the same characters again in the persons of actors portraying their story.
That's when it got weird. I introduced a character to serve as advisor on making the film. An adviser who was supposed to be the author of the first book!
Essentially, I had a character portraying my alter ego, my pen name. He's a little like me, but he has more fun.
In all I have four books so far.