Credit three people mainly with the film's success: E.M. Nathanson for his novel on which the movie is based (screenplay by Nunnally Johnson and Lukas Heller), Nathanson saying that while it was fiction, he was inspired by legends of such things actually taking place; director Robert Aldrich, an old hand at action thrillers with movies like "Kiss Me Deadly," "What Ever Happened to Baby Jane?," "The Flight of the Phoenix," "Emperor of the North," and "The Longest Yard" to his credit; and Lee Marvin, a former Marine riding high as an Oscar winner for "Cat Ballou" two years earlier and "Point Blank" the same year.
Director Robert Aldrich (Kiss Me Deadly, What Ever Happened to Baby Jane?) was one of Hollywood's most brutal, unruly directors, and his instincts sometimes led to huge flops, as well as to popular successes like The Dirty Dozen.
Director Robert Aldrich, whose career beyond this film hasn't really survived in the public consciousness (though What Ever Happened to Baby Jane? has its cult, and Ulzana's Raid ought to be better-known), was one of those man's man directors, who wasn't afraid to stare, unblinking, at the carnage his characters' masculinity wrought, and his presentation of the third act violence is absolutely pitiless, a bitter reminder that there's no morality on the battlefield, and awful things happen on both sides.
Grand Guignol runs head-on into 40s film noir and the result is this chilling, hysterical 1962 movie by the master of the bleak (black) vision, Robert Aldrich (The Dirty Dozen, Ulzana's Raid, Emperor of the North, Kiss Me Deadly).