Jason Robards plays a character named Henry Drummond. In 1988 he would play a character with the same name in the completely unrelated TV movie version of Inherit the Wind.
Director Fielder Cook had liked James Berwick's performance so much that he insisted Berwick reprise his television role of barman Sam Rhine in this film, despite his lack of cinema experience. This was Berwick's only screen role of any note, all other appearances being bit parts.
Final film of Charles Bickford.
The hand that Mary is holding for her husband Meredith is the 4 and 6 of clubs, 5 of diamonds, 6 and Queen of hearts.
This film provides the final screen appearance of comedian Chester Conklin, who had appeared in about 300 movies from 1913.
This movie was initially written for television as "Big Deal in Laredo".