Ever wonder what happens when metal gods jam in a room together? Spoiler: it's loud, sweaty, and glorious.
Sound
Raw studio footage where legends actually flub takes and laugh about it.
Production
Watching Portnoy's drum face in 4K should be illegal.
Director
Randy Walker
Trivia, insights & behind the scenes
Metal Allegiance formed from annual jam sessions at the San Francisco Giants' 'Metal Night' games, because apparently baseball needed more double-kick drums.
This 2015 doc captures the exact moment metal's old guard started actively mentoring younger players, reversing the genre's usual eat-your-young mentality.
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