The job of a film director is extremely challenging which requires the person to have knowledge of almost all the fields of film production. The success or failure of a film more or less depends on the capabilities of a film director.
On September 1, 1939, Hitler invaded Poland from the west; two days later, France and Britain declared war on Germany, beginning World War II. On September 17, Soviet troops invaded Poland from the east.
Only time will tell. In Europe, World War 2 is considered to have begun on September 1, 1939, with the Nazi German invasion of Poland. In 1940 Nazi Germany invaded and occupied most of France. Eventually the Germans occupied most of Europe. In 1941, Hitler abrogated his treaty with Stalin by invading the Soviet Union.