The Man From Coxs River is the story of Luke Carlon, whose family has lived in the Burragorang Valley since the 1800s. With the area, near Warragamba Dam, declared a wilderness area in 1987, the Carlons' business of taking horseback tours along the Coxs River was scuppered, but a job offer to remove a pack of wild brumbies from the area gave Luke a chance to reconnect with his family roots.

"It's this classic story of a guy redeeming himself, proving to his ancestors his horseman and bushman skills are still alive," said director Russell Kilbey.

"At first Luke didn't want to take the job, it was a pretty impossible task. I heard about it and talked him into letting us film him removing the horses."

Filmed over three years, Luke's job was made more difficult because the rugged bushland prevented vehicle access, meaning horses had to be broken and then herded out of the valley.

The film has sold out multiple screenings in the Blue Mountains, and is now travelling the country with 40 screenings planned already.

"We thought it was just popular in the mountains because it was made near there, but it's going well in other places too," Mr Kilbey said.

"People are hungry for the story. They are naturally funny, droll Australian characters you don't see much of any more."

The Man From Coxs River screens at the Gala Cinema on Wednesday at 7.30pm.