There are 3 alternate versions of the documentary. The first was shown on BBC TV and included interviews with
Mercedes McCambridge,
Mark Kermode and former UK censor
James Ferman. The second was slightly shorter, excluded all footage of McCambridge and Ferman, and appeared on the US DVD and UK VHS Special Edition versions. The third runs around 52 minutes, excludes some of the deleted footage (which is included as isolated extras) and appears on the UK DVD issue.