At fourteen years old, best friends Lips and Robb Reiner made a pact to rock together forever. Their band Anvil, hailed as the "demi-gods of Canadian metal," influenced a musical generation including Metallica, Slayer and Anthrax. Though Anvil never made it, they never stopped playing or believing. Following a calamitous European tour, Lips and Robb, now well into their fifties, set off to record their thirteenth album, "This is Thirteen," in one last attempt to fulfill their boyhood dream. We recently caught up with the director behind Anvil! the Story of Anvil, Sacha Gervasi, for a chat about the film. To watch our exclusive video interview, click on the clip below:

Anvil! the Story of Anvil opens April 10th, 2009.