I think that with any emotion - fear, love, nervousness - if the actor's feeling it, then the audience feels it.
Jessica ChastainIt's tough, acting. You have to walk two lines of a tightrope. There's the all-consuming fear of failure: I'm about to fall flat on my face. There's that and there's also confidence - you have to be confident in order to try things - and they fight each other all the time.
Jessica Chastain