 A number of writers contributed to the script during its  development. These included directors John Landis (I) (qv) and  original director Guy Hamilton (I) (qv); script writers  Richard Maibaum (qv), Stirling Silliphant (qv),  Cary Bates (qv), Tom Mankiewicz (qv) and Anthony Barwick (qv);  and authors Anthony Burgess (qv), Ronald Hardy (qv) and  Derek Marlowe (qv). In total, twelve scriptwriters worked on the  script which went through to fifteen drafts.