Inside Black Sabbath: A Critical Review 1970-1992

This documentary delves into the history of Black Sabbath, featuring previously unreleased film of the original Ozzy Osbourne line-up from 1971. It examines the question of who was the best singer for the band, presenting perspectives on Ozzy, Ronnie James Dio, and Tony Martin.

The film includes extensive interviews with band member Tony Iommi, as well as music critics and musicians. It serves as a rockumentary that showcases the band's impact on the heavy metal genre and its lasting legacy within the music industry.

For collectors, this documentary is a unique addition that highlights key moments in Black Sabbath's history and includes rare materials that have not been widely available before. The focus on interviews and critical analysis makes it a valuable resource for fans and music historians alike.