John Wayne's singing was dubbed by Glenn Strange, who was better known later on as Sam the bartender on Gunsmoke (1955).
The failure of the original copyright holder to renew the film's copyright resulted in it falling into public domain, meaning that virtually anyone could duplicate and sell a VHS/DVD copy of the film. Therefore, many of the versions of this film available on the market are either severely (and usually badly) edited and/or of extremely poor quality, having been duped from second- or third-generation (or more) copies of the film.
This film received its initial telecasts in Syracuse Sunday 1 May 1949 on WHEN (Channel 8), in Detroit Tuesday 17 May 1949 on WXYZ (Channel 7), in Los Angeles Sunday 31 July 1949 on KTSL (Channel 2) and Saturday 4 March 1950 on KECA (Channel 7), in Cincinnati Monday 5 September 1949 on WCPO (Channel 7), and in Philadelphia Monday 5 December 1949 on WFIL (Channel 6); in New York City its earliest documented telecast occurred Monday 21 August 1950 on WOR (Channel 9).