Much like the films themselves, the influential documentarians on this list have changed people's viewpoints and perspective across the world—always for the better. Whether they set out to expose underlying truths about controversial subjects or simply want to show the real lives of various celebrities, these famous filmmakers have an eye for the interesting most others don't possess. Moreover, they document some of the most important sociological and economical issues throughout the world's history—and create some of the most life-changing documentaries.
Of course, it's not just the subjects that make these documentary directors so influential, but it's their approach that affect both viewers and other filmmakers. In other words, the world's most influential documentarians set the standard for documentaries, pioneering the way in which we document important topics and issues. With this, the films they've made stand the test of time and go down as the greatest documentaries ever made.
Now, take a look at the most important documentary filmmakers of all time and cast your votes to determine who were and are the most important. If you think someone should be on the list, go ahead and add them.