Norman Jewison

I still get a lot of material but I find that as one gets older you get more fussy. You know you're going spend a year or a year and a half on this and you know there are only so many films in you so you get a little bit more selective.

The historical novelist has to consider what has actually happened, while the SF writer is dealing in possibilities, but they are both in the business of imagining a world unlike our own and yet connected to it.