Reviews provided by RottenTomatoes
Allison Benedikt, Chicago Tribune: The film is packed with hilarious, often poignant interviews with metal luminaries. Read more
Ted Fry, Seattle Times: It's all jolly good fun captured with proficiency, professionalism and the keen sense of someone who truly wants outsiders to understand what makes a dyed-in-the-wool headbanger so passionate about his music of choice. Read more
Erin Meister, Boston Globe: The metal scene emerges throughout the documentary as the recruitment center of an army of misfits, where the outcasts of the world can seek each other out based on their love of the angsty, eardrum-destroying tunes their parents warned them about. Read more
Kevin Crust, Los Angeles Times: Interviews with metal practitioners such as Tony Iommi, Alice Cooper, Rob Zombie and Dee Snider, journalists and academic types paint a compelling portrait of a vibrant society of outsiders. Read more
Bruce Westbrook, Houston Chronicle: A lightweight fanboy valentine for ostensibly heavyweight music. Read more
Chris Vognar, Dallas Morning News: Unlikely to win many new converts, but its core audience should have a rockin' good time. Read more
Scott Foundas, L.A. Weekly: At once playful and thorough, the documentary is also stacked teased-hair high with wicked performance footage. Read more
Manohla Dargis, New York Times: This documentary about one of the most loathed, lampooned and beloved music genres isn't the kind of film to rock your world, though it may well inspire laughter. Read more
Colin Covert, Minneapolis Star Tribune: Full of splendid social and psychological insights. Read more
Liam Lacey, Globe and Mail: The idea of looking at the music from the perspective of a fan, and plugging it full of interviews with rock idols, is clearly a winner. Read more
Geoff Pevere, Toronto Star: It's a fascinating and anecdotally rich journey. Read more