When we were doing 'Freaks and Geeks', I didn't quite understand how movies and TV worked, and I would improvise even if the camera wasn't on me. I thought I was helping the other actors by keeping them on their toes, but nobody appreciated it when I would trip them up. So I was improvising a little bit back then, but not in a productive way.

When I was younger, I didn’t know that I should just listen to my own voice, my own artistic sense of things when I was choosing projects, because one of the biggest creative decisions that an actor can make in the film business is what you will work on.

Sometimes I think to myself, what should James Franco say next? And then it comes to me. Boobs.

I don't even like to sleep - I feel as if there's too much to do.

We all age. You shouldn't discount it as a subject for a film. Just because the characters are dealing with issues that you might not deal with for another 45 years doesn't mean you won't like it.

Adapting a book is essentially a collaboration, whether the author is alive or dead.

You just don't really rehearse kissing scenes, whether it's male or female.