^"Crown v. Stevens (1936)". BFI Screenonline. His following assignment, The Man Behind The Mask (which does exist, but in a much truncated form with a private collector) was released only three weeks after Crown ...
Bibliography
Low, Rachael. Filmmaking in 1930s Britain. George Allen & Unwin, 1985.
Wood, Linda. British Films, 1927-1939. British Film Institute, 1986.