In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
Q: The cinema of the United States, often metonymously referred to as Hollywood, has had a profound effect on cinema across the world since the early 20th century. The dominant style of American cinema is Classical Hollywood Cinema, which developed from 1917-1960 and characterizes most films to this day. While Auguste and Louis Lumière are generally credited with the birth of modern cinema, it is American cinema that soon became the most dominant force in an emerging industry. Since the 1920s, the American film industry has grossed more money every year than that of any other country.
A: 
one feature of industry pioneered by the united states was