Don Siegel says in his autobiography that Audie Murphy was so shy that it was difficult for him to perform the rehearsals with Pat Owens. But, according to Siegel, shyness did not prevent Murphy from carrying a gun in his belt while he and Siegel went out to eat in a restaurant - just in case they ran into any trouble.
Director Don Siegel was unhappy with Audie Murphy as the choice for the lead role.
Film debut of Gita Hall (born Birgitta Wetterhall in 1933 in Sweden) in the role of Eva.
This was the first feature film from Seven Arts Productions.
Distributor United Artists had acquired the rights to the 1944 film based on the same novel as this one earlier in 1958 when it purchased Associated Artists Productions, who had purchased the pre-1950 Warner Bros. library two years earlier. Coincidentally, production company Seven Arts purchased WB in 1967, but UA (as part of MGM) retains this film to this day.