Anvil is a Canadian heavy metal band consisting of Steve Kudlow, Robb Reiner and Glenn Five. It has greatly contributed to the development of heavy metal as a musical genre. This is a band has been active since 1978; their music is trash/heavy metal with looks to match. They often appear in major heavy metal festivals and have been the subject for a documentary in 2008 - Anvil! The Story of Anvil, by a director/writer who was their former roadie, Sacha Gervasi.