By Robert Thomas
BBC Wales news
The project has reached back 4,000 at local history
Schoolchildren in Denbighshire have been at the premiere of a film they have helped produce as part of Britain's Cultural Olympics.
For the last year pupils at five schools have studied the Bronze Age landscape and artefacts of north Wales.
It includes the Golden Cape which was discovered in Mold in 1833.
The resulting short film was shown at the Scala cinema in Prestatyn, helping to explain the life and landscape in north east Wales 4,000 years ago.
The centrepiece of the film is the Golden Cape, which is now housed in the British Museum and the children have used it as a key part of their story.
The ceremonial artefact is thought to date to the early Bronze Age, at around 1950-1550 BC.
Children have spent a year studying Bronze Age life in north east Wales
"It is a celebration and exploration of the landscape, the extraordinary prehistoric story of north east Wales," said lead artist Sean Harris of the project.
"It is unusual to be working on something which has a three or four year life span with the mass of schoolchildren we've been working with."
The Cauldrons and Furnaces project will involve the same pupils continuing to work on the story over the next two years, even when they have moved on to secondary school.
The story will continue with live performances, including dance, and may also feature more film.
The Mold Cape is made from the equivalent of 23-carat gold and weighs one kilogram.
The full story will then be told in a performance at Denbigh Castle in the summer of 2012 as the Cultural Olympiad comes to a climax.
Chloe Mainon, a pupil at Ysgol Y Faenol, Bodelwyddan said: "We went on a trip to Ruthin craft centre and we looked at dance, we looked at stuff in the gallery, and we did some drumming as well."
Joseph Berrym, a pupil at Ysgol Bryn Hedydd, Rhyl: "Sean showed us a couple of films in school and we also went on the internet and viewed the Mold Cape."
Michael Harvey, project storyteller, said it was about asking the sort of questions everyone asks about these "fantastic objects".
"We've done about two thirds of the work," he said.
"There's a lot of detail to go but by the time we've finished we'll have a complete story."
Other Cadw sites which are being used as venues for the project, include heritage town Blaenavon, as well as Caerphilly, Caernarfon and Harlech castles.
Pupils at the premiere of their short film at the Scala cinema