There's an organization dedicated to preserving and teaching this art, the Haitian Machete Fencing Project. The man teaching this are was Alfred Avril. He passed away this year, shortly after the films and interview was finished. Here's what he had to say about his art:
"It was never about striking hard, it was about a certain amount of flow. This is not karate." In fact, it's all about defense and Avril says so in the film: "I don't use this gift to kill people."
The Sundance Film Festival is going show a documentary this year.