Wyatt Earp was 26 when he came to Wichita. His romantic interest is portrayed by Vera Miles, who was also 26 at the time of filming. Earp is played by Joel McCrea, who was 49 at the time of filming.
This was Allied Artists' first release in CinemaScope.
Vera Miles attended North High School in Wichita as Vera Ralston.
Vera Miles and Keith Larsen (Bat Masterson) would marry five years later.