Film-makers are often attracted to Shakespeare’s plays with their vivid characters, exciting stories and scope for new takes on familiar subjects.

But ever since the pictures started talking, the language has been a challenge both in quality and quantity; there isn’t the need for so much dialogue in a medium where showing trumps telling.

Jackson has been text consultant for several feature films – including all of Kenneth Branagh’s versions of Shakespeare’s plays – and many stage productions. His books include Shakespeare and the English-speaking Cinema, Shakespeare Films in the Making, and The Cambridge Companion to Shakespeare on Film.