Summary: In a special edition, Francine Stock and guests discuss difficult books adapted for the big screen. Deepa Mehta talks Midnight's Children, Ang Lee reveals the challenges of making Life of Pi, and Walter Salles discusses On the Road. Meanwhile, Sir Christopher Frayling, critic Tim Robey, and screenwriter Tony Grisoni look back over the years at cinema's attempts at realising 'unfilmable' books.
