The cinema of the United States, consisting mainly of major film studios (also known metonymously as Hollywood) along with some independent film, has had a large effect on the global film industry since the early 20th century. The dominant style of American cinema is classical Hollywood cinema, which developed from 1913 to 1969 and is still typical of most films made there to this day. While Frenchmen Auguste and Louis Lumière are generally credited with the birth of modern cinema, American cinema soon came to be a dominant force in the emerging industry. Hollywood is considered to be the oldest film industry, in the sense of being the place where the earliest film studios and production companies emerged. It is the birthplace of various genres of cinema—among them comedy, drama, action, the musical, romance, horror, science fiction, and the war epic—and has set the example for other national film industries. Since the early 20th century, the U.S. film industry has largely been based in and around the thirty-mile zone in Hollywood, Los Angeles, California. Director D.W. Griffith was central to the development of a film grammar. Orson Welles's Citizen Kane (1941) is frequently cited in critics' polls as the greatest film of all time. The major film studios of Hollywood are the primary source of the most commercially successful and most ticket selling movies in the world. Many of Hollywood's highest-grossing movies have generated more box-office revenue and ticket sales outside the United States than films made elsewhere. The United States is a leading pioneer in motion picture engineering and technology.