It was the little musical that ended up with cult following. When the Rocky Horror Show opened in London in 1973, it bucked the trend of big-budget and technical productions like Jesus Christ Superstar and Hair.
It was the brainchild of Richard O'Brien, the UK-born New Zealand-raised creative who wrote the stage show and played the character of Riff Raff.
The show became a hit, and Richard wrote the screenplay when it was turned into the Rocky Horror Picture Show. Rocky's transition from musical to movie, to 4am screenings with audience dress up and participation, has been captured by Richard's son Linus.
It features interviews with key members of the production team and original cast, including Tim Curry, Susan Sarandon and Barry Bostwick.
It's called Strange Journey: The Story of Rocky Horror and is screening as part of the DocEdge film festival. Linus and Richard join Kathryn to talk about the show's enduring legacy.
