The film, narrated by "LA Plays Itself" director Fred Halstead, begins by looking at the muscle magazines and films of the late 1940s-early 1960s, then at the softcore films of the late 60s and the boundary-pushing and legal-testing which allowed these to evolve into hardcore loops and then features.
| Actor | Role |
|---|---|
 Fred HalstedNarrator | Narrator |
| PPoco AlanSelf (archive footage) | Self (archive footage) |
| LLarry DanserSelf (archive footage) | Self (archive footage) |
 Ed Fury(archive footage) | (archive footage) |
| SSky Kinque(archive footage) | (archive footage) |
| DD.C. Michaels(archive footage) | (archive footage) |
| RRuffin Tumble(archive footage) | (archive footage) |
| BBilly HitchcockNot listed | Not listed |
| MMonte Hanson(archive footage) | (archive footage) |