At the heart of every movie is performance; the interpretation of the words on the page into living breathing characters. But how do you write for performance? How do actors think? How do you construct a movie that actors can sink their teeth into? Miranda Otto (Lord of the Rings, The Thin Red Line, Cashmere Mafia) and Jeremy Sims (Fireflies) lend their views to this episode, which explores the relationship between the script and performer.