The twelfth of sixty-six Hopalong Cassidy movies.
This is one of 54 Hopalong Cassidy features produced by Harry Sherman, initially distributed by Paramount Pictures from 1935-1941, and then by United Artists 1942-1944, which were purchased by their star William Boyd for nationally syndicated television presentation beginning in 1948 and continuing thereafter for many years, as a result of their phenomenal success. Each feature was re-edited to 54 minutes so as to comfortably fit into a 60 minute time slot, with six minutes for commercials. It was not until 50 years later that, with the cooperation of Mrs. Boyd. i.e. Grace Bradley, that they were finally restored to their original length with their original opening and closing credits intact.
Lee J. Cobb's first credited acting role albeit with a different stage name... Lee Colt.
This film received its initial Los Angeles telecast Saturday 30 October 1948 on KTLA (Channel 5); it first aired in Atlanta Saturday 30 April 1949 on WSB (Channel 8) and in Fort Worth Saturday 4 June 1949 on WBAP (Channel 5).
The onscreen title is Rustler's Valley not Rustlers' Valley.