Two scantily clad men pose, wrestle, and jokingly try to out-flex one another in what amounts to a beauty contest of its own.

The Athletic Model Guild (AMG) was the patriarch of "physique" photographers. In a half-century of photographing nude young men, AMG's Bob Mizer produced thousands of charming, surprisingly moralistic movies. Join us in taking a look back at this bygone era of innocent sexuality.

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.