The Winslow Boy is a 1948 film adaptation of Terence Rattigan's play The Winslow Boy. It was made by De Grunwald Productions and distributed by the British Lion Film Corporation. It was directed by Anthony Asquith and produced by Anatole de Grunwald with Teddy Baird as associate producer. The screenplay was written by de Grunwald and Rattigan based on Rattigan's play. The music score was by William Alwyn and the cinematography by Freddie Young.