Darkon

Darkon is a 2006 American documentary film that follows the real-life adventures of the Darkon Wargaming Club in Baltimore, Maryland, a group of fantasy live-action role-playing (LARP) gamers. The film was directed by Andrew Neel and Luke Meyer, who engaged in a collaborative process with the role-players of the Darkon Wargaming Club as they made the documentary. Meyer and Neel began filming for the documentary in 2003.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.