And now, Hollywood Reporter has put the film on its Oscars predictions shortlist for Best Documentary Feature alongside films like OJ: Made in America, The Ivory Game and Amanda Knox.
David Farrier tweeted about the short listing, saying "as someone who likes nothing more than sitting down and watching a movie, this is lovely".
But he's also not counting his chickens just yet, later adding that "being on a list about a list is like all the times I got participation certificates at high school".
Still, he's got the backing of one of his fellow Kiwi filmmakers.
Taika Waititi - who is in Australia directing the latest instalment of Marvel's Thor franchise, Thor: Ragnarok - tweeted Farrier his support:
The Oscars are due to take place next February, with the nominees due to be announced toward the end of January.
