Babylon is a contained seven-hour miniseries, but it hadn’t all been written. So all the actors were signing on based on the first two hours and an idea of where it might go.
Everybody was in the room together when we were doing those first table readings and rehearsals. The writers and the directors are watching the actors [and asking] “where’s the chemistry?” and “who has a natural rapport?” and “what aspects of the character really land and what isn’t working?” And then they tailor the scripts to the clay they’re working with.
I found that to be a really exhilarating process, because everyone was really open to what the actors had to offer in terms of the depth of the character homework they can do. I spend all day thinking about Liz Garvey and her perspective and where she comes from […] When you’re bringing this sort of depth of experience, like “I think this and this” about Liz’s background, or how she relates to Finn - all that, it ends up woven into the story. It’s a really rewarding experience as an actor.”
— Brit Marling on Babylon (x, ‘Smart Works’ SundanceTV panel)