Forty Thieves (1944)
Genres: Western
Cast: William Boyd, Andy Clyde, Jimmy Rogers
 Forty Thieves  is a 1944 American Western film starring William Boyd in the lead role of Hopalong Cassidy. It was directed by Lesley Selander, produced by Harry Sherman and released by United Artists. This was the last Hopalong Cassidy film that producer Harry Sherman produced for United Artists.