"I imagine as time goes on it will get more intensive. At the moment I am meeting and filming with Faye twice a week.
"I am endeavouring to make a film that will be free of bias, and it is my hope that I might educate myself more about the pros and cons of medically assisted dying over the course of making the film."
The insight into Faye's world will be intensive, following her hospital visits and involvement in the voluntary euthanasia community.
Joe said he was impressed with Faye's determination, pragmatism and positivity in helping to champion her cause.
"It's humbling to be around this attitude. She has accepted her prognosis and she would like to know what her death will be like - it's almost become quite an impersonal experience. She's very pragmatic and very clear about what she wants from her death. She wants as much information as possible," he said.
Faye, who chairs the Voluntary Euthanasia New Zealand Waikato branch, said the decision to be the subject of the film was a simple one to make.
"I'm supporting a principal I believe in."
She said Joe seems to be the man for the job.
"He has a strong need for a creative project - that's just who he is. He needs the challenge."
She said she could not understand the Government's unwillingness to address the issue.
"They lack the courage to take up the matter. We do flags and we do the Hollywood thing, we did that overnight with breaking down the unions for the Hobbit movie. But something like this that for the past 10 years, 70-82 per cent of New Zealanders have told the Government they want reform."
She said since her diagnosis in 2009 she had seen some low moments and that it would undoubtedly become an increasingly personal and intimate journey, but so far the experience had almost seemed impersonal.
"I almost feel like I'm talking about someone else ... I'm not very good at self-analysis you know, I just get on with life. I think I'm a bit of a challenge for Joe because essentially I'm very pragmatic."
A surprising consequence for Faye is that the filming has forced her to be more introspective.
"It makes me think about my condition and what I want. It gives me a focus I guess."
Faye hopes her family and friends will feature in the film, and was willing to talk about her ideal death.
"I would like to have a party with my closest friends and family and then have a doctor there and for it to be lawful. I would like to be at home and I don't want a lonely death. Tchaikovsky's 1812 overture would be playing with the canons firing at the end. That would be marvellous.
"I would hear the beginning up it but not the end," she said.
Faye is 72 and among her many jobs she is a Justice of the Peace and a marriage and civil union celebrant.
Joe said one of the challenges of the project had been finding doctors to speak on record.
"You won't find many who will speak on it. They will be the ones taking a life - it's a big transition from the Hippocratic Oath. What we have to decide is - is it life, or the prevention of suffering."
Joe said New Zealand was lagging behind other countries like the Netherlands, Belgium and Switzerland, with the closest legislation being the End of Life Choice Bill proposed by Maryan Street, which was dropped in December 2014.
The bill would have required two physicians' consent to supply drugs for the purpose of assisted dying and safeguards to make sure there was no coercion or collusion involved.
Since then, the Voluntary Euthanasia Society of New Zealand (VESNZ) presented a 8975-signature petition to a parliamentary select committee on June 23 asking for parliamentarians to open up the debate around assisted dying.
"It could be three years before we see a decision either way but I hope Faye gets the chance to make her own decision."
Joe said it was unusual to see a topic on which New Zealanders were so united.
"A 2008 VESNZ poll reported that 71 per cent of New Zealanders are in favour of assisted dying and a Massey University study from 2006 reported than more than 70 per cent of New Zealanders were in favour of assisted dying when overseen by a doctor," he said.
VESNZ president Jack Havill said even doctors, who traditionally have a very conservative stance, are not wholly apposed to the idea.
"We have done a survey of Waikato GPs and that showed that about 50 per cent would support or possibly support legislation on end of life dying. An independent doctors' survey confirmed this."
The VESNZ website states that in April, a independent survey by Research New Zealand found 74 per cent of New Zealanders surveyed believe people suffering a painful incurable disease should be able to get help to end their lives. Only 20 per cent opposed doctors being allowed to assist if a patient with a painful terminally ill disease requested it.
Jack said the delay in action was simply a matter of politics and that strong opposition from a select number of groups were delaying reforms.
"Palliative care groups are not in favour, the medical association is ethically against it, there are lots of pressure groups."
Other strong opponents include The Care Alliance, Euthanasia Free New Zealand and Not Dead Yet Aotearoa.
But he said it was a matter of time before there was a legislative change, and it would most likely happen within five years.
Joe said he expects filming to take a year, with post-production taking an extra two or three months.
"I would like to enter it in the film festival and for it to be seen by as many people as possible in New Zealand and abroad," he said.