Were the Dallas Cowboys Cheerleaders, in some rollicking sex-positive way, an intrinsic part of the feminist revolution? Or did they represent one step forward and one high kick back? You could make the case either way, but the film pushes the clean and forceful — if highly ironic — argument that the Cheerleaders were nothing more or less than empowered entertainers who seized control of their sexuality and, in doing so, advanced the liberation of women.