If you’ve got some time, the documentary “The Great Happiness Space” is highly recommended. It’s an in-depth look into the odd world of male prostitution in Japan, and it’s really well made. It shows us a way of life that’s really bizarre, deceptive and in the end, probably quite destructive for all involved. At several points in the documentary, the assumptions you’ve made about what you see, turn out to be false. An absolute must-see. Unfortunately Google Video took it down, but check out the site.