It's a question of opening it up, and it's a question of...

It's a question of opening it up, and it's a question of closing it down, ... You know, opening it up in the sense of: We need a giant, epic story that is not the kind of thing these people usually get involved in in a TV series, which is more mundane. You need a reason for this to be a movie. The closing comes in making sure that it is accessible to everybody: that you explain everybody as much as you need to, that you explain the world as much as you need to, that you begin and you end, that you have an arc for the character, as well as a plot that has a question and then an answer.