Everyone has an opinion on Michael Moore.
His films are radical, unabashedly liberal, profitable, and sensationalist. He’s a love-him-or-hate-him type of director, but his influence on documentary filmmaking is undeniable. Prior to figures like Moore, documentaries tended to be relegated to public broadcasting and tiny independent cinemas. But everything blew up in the early aughts, with films such as Bowling for Columbine, and Fahrenheit 9/11, grossing hundreds of millions of dollars at the box office.