Film documents Ironman challenge training

The film was shot and edited by Sean Smith (left) and directed by his uncle, Raymond Mouzon

A group of fitness fanatics have featured in a film charting their training for a triathlon event.

Shot and edited by 18-year old Sean Smith, Beyond Limits tells the story of 10 people from Berkshire preparing for a half Ironman - a 1.2-mile (1.9km) swim, a 56-mile (90km) cycle, and a 13.1-mile (21.1km) run.

The video was directed by Mr Smith's uncle Raymond Mouzon, who runs RAM Fitness in Bracknell.

Mr Mouzon said his nephew, who is autistic, did a "remarkable" job.

He said he got the idea for the video after seeing a video Mr Smith had made about a relative training for a triathlon.

"It was literally like a mini movie and I was like - wow, this kid can edit," he said.

He facetimed his nephew and told him his plans, and Mr Smith said he thought at first his uncle was "completely waffling".

"But then he got other people involved, they were getting equipment, scheduling interviews, and I'm like - oh, ok, we're actually doing this," said Mr Smith.

"And low and behold, we did, we had the premier on Friday and it was great."

'Step into the unknown'

The 10 people featured in the film were from "all different walks of life", Mr Mouzon said.

Participant Joyce Jeffrey said she decided to do it mainly for health reasons.

"As you get older fitness becomes a bit more important to you, and seeing people around me have various health scares as well, made it more important," she said.

She said seeing herself on the big screen was "not something I was looking forward to", but said: "Sean's done a great job on it, so it was nice to see it and good to look back on all the effort we'd put in."

And for Mr Smith, making the film was "a massive step into the unknown".

"I've done college projects and personal little videos in the past, but nothing on the scale," he said.

"It's meant to represent us all as a collective going beyond our limits.

He added: "Going beyond my limits of my disabilities to be able to edit together a whole feature length film and put it on a screen in Cineworld - it's not really something many people can say they've accomplished.

"Nothing can stop you. You can do whatever you put your mind to."