The most memorable symbol of the revolution that swept across Europe two decades ago is the November 1989 opening of the Berlin Wall. Soon after, East and West Germany were reunified, and in the ensuing months the almost unthinkable happened: the Soviet Union was dismantled. THE WALL - A WORLD DIVIDED tells that story from the unique perspectives of three world leaders -- Helmut Kohl, then Chancellor of the Federal Republic of Germany, Mikhail Gorbachev, then General Secretary of the Soviet Union, and George H.W. Bush, then President of the United States. They were at the epicenter of that remarkable series of events, when the face of Europe changed almost overnight. In this documentary they tell the story of how history unfolded. A brief history of the Wall -- why it was built and why it remained standing -- segues into personal accounts that bring alive the reality of what the Wall meant to Berliners day-in and day-out for so many years. The film includes experiences of everyday people to help put the historical events discussed by the three leaders into an accessible context, from the darkest days of the 1960's Cold War through the surprising events that led to the fall of the Wall in 1989.