Except for one scene filmed in a studio, the entire picture was shot on an ocean liner traveling between Los Angeles and Panama.
Following his appearance as Steve Haines in this film, for the rest of 'William Boyd (I)'s long acting career he would play only Hopalong Cassidy.
Filmed in 1935, not released until 1936.
William Boyd had already made six Hoppy movies when this was released.
This film's earliest documented telecast took place in New York City Monday 29 August 1949 on the DuMont Television Network's WABD (Channel 5).