I was thrown into a community production of 'Bye Bye Birdie' or something when I was a kid. I wanted to just build the sets, but I wasn't allowed to just build the sets unless I auditioned for the play. So I auditioned for the play and was thrown into the chorus. During the course of that I fell in love with it, and I never really turned back.

I play Edward G. Robinson [in Trumbo], who was a close friend and a co-worker of Dalton's [Trumbo]. They worked together on at least one or two screenplays. A lot of these stories take famous people and show you who they are behind the scenes, which is kind of fun. One of the things about getting to play Edward G. Robinson was learning who the man was away from his movie-star exterior.

I think the theater work and the on-camera work feed off each other. My theater work has become more simple, and my on-camera work has become more energized or more spontaneous.

To see those two characters [Steve Jobs and Andy Hertzfeld ] juxtaposed against each other shows an interesting dynamic of how gifted people might function differently in the world.

It's nice to be able to challenge myself by playing real people. But at the same time it utilizes a different part of the brain to just invent new things.

I think in regards to [Andy Hertzfeld ] relationship with Steve [Jobs]... Andy is a brilliant guy, and loves Steve with all his heart. I think he would have loved to work with him even longer. But the circumstances just weren't right for him.

The key research I usually apply that allows me to understand the roles that I take on, starts with the script in front of me, and what it offers. I try to absorb as much of it as I can, in the time that I have to study it, and I like to change things up, if I have a choice in the matter... and I usually don't. I dream on it, write about and find out who the individual is, and try to bring him to life with as much human and truth as I can.