Writing at length is tricky.

I’m not saying the putting of words down into a piece of work is difficult. That’s the fun part. If it wasn’t fun nobody would do it. Writing comes easier to some people than others, of course, but on the whole we write because we enjoy writing. The pen and paper is our guitar, you could say. The word processor our brush and canvas. But let me continue my point before this gets too wanky.

I say at length because a manuscript or a screenplay generally takes a long ti...