At the documentary's Albury screening on Saturday, Ms Newman said the Solstice documentary, which features Annette and Stuart Baker, Joe Williams and Lisa Cartledge, was not about loss, but the power of individuals.

"It's not a collection of stories of people who have lost someone to suicide, it's about what you can do to change that, what we can do to change that," she said.

"Each of those people began with the most horrible experience of loss and each of them has then taken that on to create the change.

"Underlying every person's story is that they don't want other people to have that suffering.

"They want to make change so other people don't have to have the same experience that they had."

It was the first time the film's main subjects, Mrs and Mr Baker, had seen how filmmaker Ms Newman had portrayed the story of their daughter Mary's 2011 death and the creation of the Albury Wodonga Winter Solstice.

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"While it's something I think is really important, it's also putting yourself out there, which is a bit nerve wracking," Mrs Baker said.

"I'm not really good at this sort or thing but we've done a fair bit over the last eight years..

"It's a bit like the Winter Solstice event, something like this has never been done.

"It is really important. I would have loved to have come and seen something like this, I would have loved to have gone to a Winter Solstice event, so we've done it."

Mr Baker said he had tears in his eyes while watching the documentary, which was two years in the making, and followed he and his wife all the way to London's Museum of Lost and Found Potential.

"I didn't know what to expect when coming," Mr Baker said.

"But I found it absorbing and really, really moving."

Ms Newman hopes to receive more funding for the film so she can make it feature-length and hopefully take it global.

The documentary was screened as part of a series of On the Couch events held by Border Trust.

Chair Grace Churches said they hope the event opens up a conversation around suicide prevention and mental health services.

"It's really important that we create awareness around mental health and suicide prevention but also that we unite communities and recognise the bravery of survivors of suicide loss and encourage people to take action," she said.