I always try and bring screenplay, shooting and editing into a sort of symbiotic - as close into alignment as you possibly can get them, consistent, obviously, with the resources that you've got and the time you've got available.

There's a film you write, there's a film you shoot, and there's a film that you cut - and they're all different.

All directors make films in individual ways. But the classical kind of view of filmmaking is that you have a script and it's very linear.

Acting is many things. Acting is playing lines, of course, but it's much more profound than that. Acting is truth-telling, and trying to find the truth in a human situation, which will be sketched out by a screenwriter with all the skill that a screenwriter can do; but in the end, that's just the map of the journey. The actor's job is to divine and embody the truth, and find it.

You sort of can't talk about the post production unless you talk about what comes first.

That's one of the central challenges we face - how to stay true to events and compress the fundamentals.

You face challenges and you have to make choices. You're weighing the necessary responsibility toward reality and authenticity and of course the need to create a compressed drama over two hours.