The Chicago Theatre, originally known as the Balaban and Katz Chicago Theatre, is a landmark theater located on North State Street in the Loop area of Chicago, Illinois, in the United States. Built in 1921, the Chicago Theatre was the flagship for the Balaban and Katz (B&K) group of theaters run by A. J. Balaban, his brother Barney Balaban and partner Sam Katz. Along with the other B&K theaters, from 1925 to 1945 the Chicago Theatre was a dominant movie theater enterprise.