It was the trailer of the High School Musical, which provided Ryan McHenry with his inspiration.
The Scottish director felt that the only way he could enjoy this film was "if all the zombies will sing everything.
It inspired the idea of the film Anne and Apokalipse, which is being distributed in cinemas on Friday – more than three years after the death of Dumfries, 27, from cancer.
Director John McPhail took the project to the big screen.
"It was the ideology of Ryan McHenry," he said.
"Ryan wrote and directed a short film titled Zombie Musical, which continued to win the Scottish talent battalion.
"Then it got to be a Black Camel, an artwork."
However, McHenry – the man in the award-winning Ryan Gosling who does not eat his Cereal Virus videos – could not finish the project.
"Unfortunately, in the design and development of the project, Ryan was diagnosed with cancer and unfortunately it was in 2015," said McPhail.
"His longtime friend and producer Naysun Alae-Carew did not want the project to go away and wanted to keep that kind of memory so he began to look for directors.
"They looked at horror directors and music directors and, unfortunately, just did not find it fit."
Then they saw Mr McPhail, where do we go from here? – A romantic comedy set up in a nursing home at the Glasgow Film Festival, and that was when he got involved.
He said his latest project is one that impressed the audience.
"It's a pretty hilarious and charming movie that has some really serious messages and sentiment – everything is about children who are dead and reach this age," he said.
"People are a bit stuck to their back legs, because they do not plan to end up crying.
"They laugh and laugh and rejoice that this is just this fun movie – it's just wonderful."
He said he responded to the film festivals that he was "blown up" and hoped that he might have a broad appeal.
"It's not just movie kids or just horror fans or just music fans," he said.
"We wanted to create a movie that goes and enjoy everyone, and feel joy and feel good, and leave the movie buzzing and worrying."
This year McPhail's "Scottish Baptist" nomination for the best art film this year was "striking".
"It's a zombie set for Christmas, it's nuts," he said.
The film also boasts of its Scottish roots and location.
"Port Glasgow was perfect for us and for people who were brilliant there," added McPhail.
"We will be out of the wind, rain and snow – that does not really mean what we have, because that's exactly what we get.
"This is what we shoot, that's what we work with."
However, it was a challenge to actress Ella Hunta, who takes Anna's role.
"Scotland is a great place to shoot and we had an amazing Scottish crew member," she said.
"One of the biggest problems was the cold, because we were fighting in February 2017, so it really was really cold."
However, she said she had a role she really wanted to provide from the start.
"I like crazy notions – the more courageous, in some way," she said.
"I really did pay attention to teenage girls who did not marginalize teen experience and were three-dimensional.
"There are so many things at the same time that she was the most useful option, so I really expected it right away."
Music videos were given by Randy Harts and Tommy Really, who from the outset described the project as "completely intriguing".
"We've never written music to try to get into this writing style, it's a whole new world," said Reilly.
He describes it as "the total freedom of music".
"I think that's all that we like most, it's such an ambitious project," said Hart.
"It's a zombie style of music that has comedy elements that are definitely in Scotland, I think, that could possibly be wrong?
"Every time we look, we find something new – it's a charming movie."
The movie is dedicated to Mr McHenry – and the man who took on the director's role felt that he would have liked it.
"I can not make any other movie, I can not make any other vision that I can do just my own," said McPhail.
However, thanks to the McHenry gentlemen who were involved in the film, he believes he has honored his memory.
"Only from their reactions, I know, that he is proud of it and really will really feel it," he said.
"For someone who was a complete prankster and so funny guy and so sweet, sweet to me, that's true respect for him."