The main hall was modified around 1946 during filming for the movie Carnegie Hall. A hole was made in the stage's ceiling to allow the installation of ventilation and lights for the film. Canvas panels and curtains were placed over the hole, but the acoustics in the front rows became noticeably different. In 1947, Robert E. Simon Jr. renovated the hall to designs by Kahn and Jacobs.
the main hall was modified around 1946 during filming for the movie carnegie hall a hole was made in the stage's ceiling to allow the installation of ventilation and lights for the film canvas panels and curtains were placed over the hole but the acoustics in the front rows became noticeably different in 1947 robert e simon jr renovated the hall to designs by kahn and jacobs