The rise of streaming platforms has created a boom for the entertainment industry documentary. Series like Netflix's The Movies That Made Us meet an audience's desire for nostalgia by showcasing the actors and directors behind beloved blockbusters. Meanwhile, "impact documentaries" are becoming a distinct category, strategically designed to move audiences from passive viewers to active participants in solving social issues.

For nearly a century, the inner workings of Hollywood, music, and television were guarded like state secrets. The entertainment industry thrived on mystique. You weren't supposed to know how the sausage was made; you were just supposed to eat it.