The film, in which 12 survivors of the terror attacks on the World Trade Centre and Pentagon tell their stories, was made by Dunedin company NHNZ for United States-based cable and satellite television network A&E.
NHNZ produces a series called I Survived for the network, and the documentary is a 90-minute special to mark the anniversary.
NHNZ managing director Michael Stedman said it might seem extraordinary a Dunedin company was commissioned by a US TV channel based in New York to make a documentary about the most significant event in recent American history, but NHNZ had produced more than 65 episodes of the series already, and it had become the channel's highest-rated show.
"It's hardly surprising they turned to this company, this team, to tell the story."
What had resulted was a powerful piece of television, that showed not only what happened to the survivors on the day, but the psychological impact since, he said.
Series producer Alan Hall, who travelled to the US to interview the survivors - eight of whom were at the World Trade Centre, with the other four at the Pentagon - said they were highly traumatised initially and some were still distressed 10 years on.
One survivor, a firefighter who was the only one of his rescue team to survive, and who helped save more than 100 people at the World Trade Centre, had not returned to work.
Although the documentary is being screened free at Otago Museum today and tomorrow, it will not otherwise screen in New Zealand, as no New Zealand television network had bought the I Survived series.
