Besides looking far too old for his character, Gary Cooper was actually quite ill during shooting, and participated in this film against the advice of his doctors. Towards the end of the film he was dragged 100 yards along the ground by a railroad handcar, something film critic Stanley Kauffmann complained about in an issue in the magazine New Republic.
In a 1960 interview John Wayne criticized this film and Montgomery Clift's Suddenly, Last Summer (1959), both of which treated homosexuality (in this film because of an implied homosexual relationship between the characters played by Gary Cooper and Tab Hunter), as "poison polluting Hollywood's moral bloodstream." The latter, he said, was "too disgusting even for discussion."
Dick York suffered a back injury during the filming of this movie and never fully recovered from it. Continuing back problems forced him off of the TV show Bewitched (1964) in 1969 and effectively ended his career. He spent his last years in poverty.