Trivia

The cast nicknamed the film "A Man Called Sludge".

Dino De Laurentiis took the editing out of the control of director Vic Morrow.

James Garner [Maverick (1957)], Dennis Weaver [Gunsmoke (1955)], Wayde Preston [Colt .45 (1957)] and Tony Young [Gunslinger (1961)] were all television western stars in the late 1950s and early 1960s.

James Garner named this as one of his least favorite films.

James Garner and Dennis Weaver also co-starred in "Duel At Diablo", four years earlier.