"With Doran's, Olivier's, Zeffirelli's, and Branagh's Hamlets in mind, we will begin to discuss both how film adaptation is like textual editing and how editing Hamlet is linked to specific interpretive issues, mostly regarding characters, and how the play's own questioning of inwardness puts our assumptions about character and performance. Directors of film or stage production in turn may edit the text into a script."

What is textual editing?