The world premiere of The Crossing Bicentennial Re-enactment movie will screen at Faulconbridge Public School this Saturday, co-inciding with the school's 50th anniversary.
Crossing movie producer Scott Richardson said the premiere movie will be shown on a five metre outside screen on the school's oval.
"There'll be lots of snacks, hot dogs and popcorn and the night will have some old lost videos of musicals made at the school as well," he added.
The Crossing Bicentennial Re-enactment film follows a small group of Blue Mountain residents and descendants of Blaxland, Wentworth and Lawson, as they retrace the footsteps of the original explorers' epic colony-saving journey.
With horses and dogs, and well-wishers cheering them on at every turn, the story follows their sometimes difficult journey two centuries on.
"The grazing land that Blaxland, Wentworth and Lawson found saved the colony of New South Wales that was short of food and in the middle of a severe drought," Mr Richardson said.
"And just like the original explorers, there was doubt they could reach Mt Blaxland because the finish point is land locked and the owners won't allow the re-enactment party to cross their land."
Descendants of Blaxland, Wentworth and Lawson will attend the event, as well as the crossing re-enactment team led by John O'Sullivan and Uncle Graeme Cooper from the Mountains.
The event will be held at dusk on Saturday, September 5.
Faulconbridge Public School's gates will open at 5.30pm. Entry is by gold coin donation.
Principal, Dorothee Lean said: "For the 50th we're running a pavers fundraiser where parents pay for a paver with their children's names and the P&C is hoping to get an extension to the canteen."
Mrs Lean said the school also planned a showcase night of students' talents next term at Springwood High School.
For details, phone 4751 2208.