Yes, that's correct. I am considering publishing an e-book trilogy, and doing a movie.
Rob 
Excellent news.
May I respectfully suggest that you publish your trilogy along the same lines as a certain epic space opera franchise centred on a film series created by George Lucas, so that your first edition is followed three years later by two sequels, released at three-year intervals? You could then, at your leisure (perhaps 16 years later), launch the first in a new prequel trilogy of eBooks, also at three-year intervals.
It worked quite well for George, anyway.
But whatever you decide to do, may the Force be with you....