Jonathan Harding. Jonathan Harding (born February 5, 1978) is a New Zealand production assistant director who will work as construction accountant in the upcoming Mortal Engines. Behind the scenesEdit Harding also worked with Peter Jackson in The Lord of the Rings trilogy and The Hobbit trilogy. External linksEdit Jonathan Harding at the Internet Movie Database Categories: Crew Miscellaneous crew Mortal Engines crew Add category Cancel Save