Harry (1881-1958), Albert (1884-1967), Sam (1888-1927) and Jack (1892-1978): the Warner brothers. By 1923 they already owned a string of movie theatres and, operating out of Hollywood, had moved into film distribution. In 1927, within a couple of years of establishing Warner Brothers Pictures Inc., they released The Jazz Singer - the first film to have synchronised music and dialogue.
Nearly fifty years later they released this. We can only speculate what Al Jolson would have made of it.