Art doesn't just happen by accident. It is about pulling out new tricks and trying new things.
The first thing that put me on the map was my Sherlock Holmes novel.
A screenplay is not a finished product; a novel is. A screenplay is a blueprint for something - for a building that will most likely never be built.
I was always a filmmaker before I was anything else. If I was always anything, I was a storyteller, and it never really made much of a difference to me what medium I worked in.
The director is a bit analogous to the conductor of a symphony orchestra. It's a collaborative adventure.
Schools and libraries are the twin cornerstones of a civilized society. Libraries are only good if people use them, like books only exist when someone reads them.
As a writer, you have control of the words you put on the page. But once that manuscript leaves your hand, you give control to the reader. As a director, you are limited by everything: weather, budget, and egos.