The National Film and Sound Archive collects film and audiovisual works archivists have included porn on their list of must-have works. True Blue, Manly Beach, Down Under and Taken Down Under, Outback Stripper and Sydney Boys Go Off are some of the films on the list.

The archive's senior curator of moving image, Graham Shirley, is unsure how the agency began collecting porn, but argues porn is a legitimate part of Australian cultural history and should be preserved.

Several of the films were made more than 80 years ago. One silent film, Girls Do You Think It's Big Enough, was made in 1929. But the vast majority of the blue movies were created in recent years.

All 108 works on the erotica list except one were obtained at no cost.