To Dorothy a Son is a 1954 British comedy film directed by Muriel Box and starring Shelley Winters, John Gregson and Peggy Cummins. Known in the U.S. as Cash on Delivery, it is based on the 1950 play To Dorothy, a Son by Roger MacDougall which had enjoyed a lengthy run in the West End. It was shot at Elstree Studios near London with sets designed by the art director George Provis. It was distributed in America by RKO Pictures in January 1956.