This movie's earliest documented U.S. telecasts took place in Cincinnati, Ohio on Friday, August 26, 1949 on WCPO (Channel 7), and in Los Angeles, California on Saturday, September 3, 1949 on KTTV (Channel 11).
The original play was a West-End hit running at the Ambassadors Theatre from May 31 1938 to March 4 1939. Directed by John Gielgud, in provided a break-out role for Margaret Rutherford who would repeat it in this film adaptation.