Screenshot: Hay Festival 2022

The journey from book to screenplay can be a long and winding road that is sometimes paved with gold, and often filled with detours and potholes. To get under the skin of literary adaptations, Mark Kermode and Ellen E Jones decamp to the Hay literary festival where the book world's biggest names gather to enjoy discussion and sharing ideas. Contributors include Cressida Cowell, author of the popular How to Train Your Dragon series, Brick Lane novelist Monica Ali and The Candy House author Jennifer Egan