Dunn's first film, co-directed with Scot McFadyen and Jessica Wise, was released in 2005. The film follows Dunn on a journey to document the origins, culture and appeal of heavy metal. It also explores the themes of heavy metal- violence, death, religion and Satanism, gender and sexuality. The documentary featured interviews with Geddy Lee of Rush and Bruce Dickinson of Iron Maiden, whose bands Dunn would profile in later documentaries.
''Global Metal''
Released in 2008, Sam directed a new film, titled Global Metal. In the film, directors Scot McFadyen and Sam Dunn set out to discover how the West’s most awesome musical genre – heavy metal – has impacted the world’s cultures beyond Europe and North America. The film follows metal fan and anthropologist Sam Dunn on a whirlwind journey through Asia, South America and the Middle East as he explores the underbelly of the world’s emerging extreme music scenes — from Indonesian death metal to Israeli Oriental metal and Chinese black metal to Iranian thrash metal, etc. The film reveals a worldwide community of metalheads who are not just absorbing metal from the West – they are transforming it, and creating a new form of cultural expression in societies dominated by conflict, corruption and mass-consumerism.
''Iron Maiden: Flight 666''
Dunn co-wrote and co-directed the 2009 documentary Iron Maiden: Flight 666 with Scot McFadyen. The film chronicles the band's 2008 tour in which a converted Boeing 757 was flown from country to country by Iron Maiden vocalist Bruce Dickinson.
''Rush: Beyond The Lighted Stage''
In 2009 Sam Dunn and Scot McFadyen started working on a documentary about Rush. The film premiered at the 2010 Tribeca Film Festival in New York on April 29, winning the festival's Audience Award.
''Metal Evolution''
Dunn has produced the documentary series Metal Evolution for VH1 Classic on various metal genres. Its premiere was on November 11, 2011, considered by many to be National Metal Day.
''Time Machine 2011: Live in Cleveland''
Is a concert DVD, Blu-ray and double CD by Canadian hard rock band Rush released on November 8, 2011. It was filmed on April 15, 2011 at the Quicken Loans Arena in Cleveland, Ohio during the band's Time Machine Tour.
Released October 27, 2015, this movie examines the origins of Satan and his influence in popular culture.
''ZZ Top: That Little Ol' Band from Texas''
Dunn directed ZZ Top: That Little Ol' Band from Texas, a profile of the Texas blues rock band ZZ Top, featuring interviews with vocalist/guitarist Billy Gibbons, bassist/vocalist Dusty Hill, and drummer Frank Beard. The film had a Los Angeles premiere at the Cinerama Dome on August 13, 2019, prior to the band's 50th anniversary tour. The documentary was released to home media on February 28, 2020, and Netflix shortly after.
Musical activities
Dunn formerly played bass for the Victoria ska/funk band, Fungkus; they disbanded in 2000. Dunn also formerly played bass for the Toronto extreme metal band, Burn to Black; they disbanded in November 2008. One of Sam Dunn's first bands was Dementia, in which he played bass. He also formed the progressive thrash metal band Scrape Chamber years later with Kelly Nordstrom. Dunn now occasionally plays bass for the Toronto band Machado and His Men; their upcoming album, Machado Boys has no release date.
