Obviously there's something very seductive about movies, which can be attractive in a bad way if you're doing them for the wrong reasons - for money, or for fame.

I will write a book one day about how I feel about every aspect of Emily Stone. She's a full genius. She has found her genius and is giving it all so fully and beautifully. I think everyone who works with her, brushes shoulders with her, or even makes eye contact with her, gets a shot of sunshine.

I realized that after finding this thing that allowed me to express myself - acting - and being encouraged by a few people that I could do it, I had kind of grabbed onto it and dug in my claws in a way that was maybe a bit unhealthy. I allowed myself to get into a headspace where I lived or died by what I achieved in this particular field.

I believe that doing movies like this is positive because they can inspire and be entertaining.

I do just want to be an actor. The thing I get out of it is actually doing the job and inhabiting the world and the role - and I mean that genuinely. That's what I'm in it for.

After a while, you crave pajamas and a shaved head.

As an actor, one is so appreciative when one is working. I think I am lucky that I have the opportunity to work having that total dependence on an external validation.