Fantasy fan Matthew Grainger has been a scriptwriter, copywriter and film critic. His first scripts were for short films and children's shows. Since then Grainger has worked with Jonathan King on multiple projects; joining King as co-writer/producer of a big screen remake of Under the Mountain, and on the script of horror tale The Tattooist. Grainger was also part of the writing team on South Auckland-set series The Market.
It was a big part of my childhood. I was growing up on all those Spielbergian films like Gremlins and The Goonies ... when the TV Series of Under the Mountain was on, it kind of had the feel of those films but it was about Kiwis, it was set in our backyard and we'd never seen that before, so it really stuck in my mind. Matthew Grainger on Under the Mountain - Flicks website, 10 December 2009