When a new writer comes onto a project, he'll make wholesale changes just to mark the territory or for greater credit.

Now with the international space station generating a bunch of video, and Space X and other companies pursuing private space flight, I think it's on all of our radars much more than it has been since the moonshots. The science of filmmaking is making these visions possible now.

A lot of screenwriters have a drawer of unsold scripts that they cut their teeth on. I don't have one. Everything I've written, after my first spec, I wrote on assignment. Everything I've written was work.

Directing offers you the hope that your vision will reach the screen, unmolested and intact. Therefore, it's tantalizing to all writers.

Real space movies have to involve zero gravity and a world without up or down.

Space and spacecraft and zero gravity and so forth are very difficult to render.

Real vectoring in space, real orbital mechanics, is very counterintuitive, very strange, and very hard to render. It's expensive, and there's a learning curve. Some of it is about raising audience literacy to the point where they understand that.