Contemporary articles in the entertainment press noted that MGM president and CEO James T. Aubrey cut 21 minutes of the film after it initially received an "R" rating. Aubrey did not give the film an opening advertising campaign or non-public previews. It quickly closed its limited run in only four cities after one week and, of course, was not a financial success for the studio or director Herbert B. Leonard, who agreed to work for a deferred salary.
Robert Mitchum and Jan-Michael Vincent reunite 12 years later, again playing father and son in the Le souffle de la guerre (1983) mini-series.
Harry's beat-up blue truck is a 1957 Dodge D-100.