Film 'Groom-a-Boomer' uses comedy to break down barriers

"We know this has been a sensitive topic and sometimes older generations find it difficult to express why they support what can be an emotive issue," Mr Berney said.

"But they love their kids, their nieces and nephews, their grandkids and most would do anything to support them."

Recent data from the Essential Report found 1-in-3 Baby Boomers were more inclined to vote 'No', while their Millennial or Gen Z children and grandchildren were more likely to vote 'Yes'.

The filmmakers said the film was a counterweight to much of the negative, politically-charged debate over the historic referendum.

"I know even in my own family there are differing opinions. But maybe, just maybe, a little dry humour might resonate," Mr Linton said.

"If all else fails, I'll be saying to my dad, I really, really want this, and you'll be dead soon.

"So, please leave this yes vote as part of your legacy for your grandkids," Mr Linton said.

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The film was independently produced for the official Yes23 campaign and has been done entirely for free.

"Who doesn't love to laugh? Everyone loves to laugh," said Indigenous man, John Edwards.

"You know what the thing about comedy is - it has truth in it. So, you hit them with the laughter; they go back and think about it and say, 'oh their is something there'."

The referendum will be held on October 14.