"We made it out of sheer boredom," said Joe Salerno, one third of the Pembrokeshire-based production team behind Legalize Murder, an independent film soon to fill shelves across the country.

Joe Salerno and Nick Warden, both from Haverfordwest, and Phillip Adams, from Newport, may have begun the film due to boredom, but it soon gathered its own momentum.

"Even when we were arguing, spending money we didn't have, and being really uncomfortable under all the hair and make-up, we never once thought of stopping it," said Joe. Their determination will pay off however, as the film is set to become the first feature-length film to make the crossover from internet to major DVD release.

The mockumentary, originally made up of serialised podcasts, follows pop culture journalist Dominic Dalrymple, based on Louis Theroux and played by Nick, as he gets to know Welsh black metal artists Vic and Jack Norseman, played by Joe and Phillip respectively.

Black metal, with its satanic/occultist leanings and rejection of Christianity, may seem an alienating topic, but the film works by parodying the genre and its associated pomp and theatrics.

Although Legalize Murder satirises black metal, Joe is a fan of the genre, praising its ability to affect listeners.

He said: "Nothing's happened in music since punk, black metal is the only thing that's come close to shaking things up. Nowadays youth culture' is wearing tight jeans and shopping in Topshop, but that's not going to cut it."

Black metal originated in Norway, and Joe wonders whether being part Norwegian may account for his affinity with the genre. He said: "The Pembrokeshire landscape lends itself to black metal," said Joe, referring to the genre's paganistic influences. The trio certainly utilise the landscape well in Legalize Murder, as every scene was filmed locally.

The trio has already scripted a six episode series, a spoof of Louis Theroux's Weird Weekends, which they hope will be aired on a commercial television channel.