ドキュメンタリーが男性ポルノ産業を暴露

Based on the input provided, I need to rewrite the existing description following the rules. The description exists, so I should improve it while keeping the original meaning, using only information from the categories/tags (though none were explicitly provided in this case). "Documentary exploring the lives of porn filmers in Czechoslovakia and Berlin. Behind-the-scenes look at adult industry creators, no explicit content.