To Dorothy a Son is a black and white 1954 British gentle comedy film in the form of a farce 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.

Shelley Winters was an American film actress whose career spanned seven decades. She won Academy Awards for The Diary of Anne Frank (1959) and A Patch of Blue (1965), and received nominations for A Place in the Sun (1951) and The Poseidon Adventure (1972). She also appeared in A Double Life (1947), The Night of the Hunter (1955), Lolita (1962), Alfie (1966), Next Stop, Greenwich Village (1976), and Pete's Dragon (1977). In addition to film, Winters appeared in television, including a tenure on the sitcom Roseanne, and wrote three autobiographical books.