Veteran British music hall favorite Sid Field made his second and last film appearance in Cardboard Cavalier. Set during the 17th-century British Civil War, the film stars Field as vegetable vendor Sidcup Butterfield. Our hero is dragooned into delivering important documents on behalf of the anti-Cromwell forces. Somehow he winds up in the court of King Charles II (Anthony Hulme) and finds himself wooing royal courtesan Nell Gwynne (Margaret Lockwood). Nothing is sacred in this historical burlesque, which even manages to work a little pie-throwing into the proceedings. One of the scripters is Noel Langley, who in 1939 contributed to the screenplay of The Wizard of Oz.