The Purple Gang was directed by Frank McDonald and was produced by Lindsley Parsons under the company Lindsley Parsons Productions, Inc.[2] The film details the formation of The Purple Gang and their criminal operations in Detroit, Michigan. It left out that the majority of The Purple Gang was Jewish.[3] The film opened with newsreels and Congressman James Roosevelt, the son of Franklin D. Roosevelt, saying that "despite its entertainment value, the film points out that only by an awakened citizenry can crime be successfully fought."[3][4] Roosevelt's introduction is followed by a statement that explains the plot of the film. 1930s newsreel footage is interspersed throughout the film.[2] The Los Angeles Evening Citizen News said that the film's narration "adds a convincing documentary flavor to the picture."[5] The narration was provided by Barry Sullivan as his character Bill Harley.[2]
Glenn Erickson of DVD Talk said, "The obvious hook with the true facts of The Purple Gang is the teen angle: in 1959 movie screens were awash with juvenile delinquency pictures. But the script as written sticks with gangster clichés, not adolescent angst."[8]Dave Kehr of The New York Times wrote, "Produced by the cash-strapped independent Allied Artists, the film employs a minimally rendered period setting to provide cover for a more or less frank admiration (at least, up until the last reel) of youth in revolt: teenagers with tommy guns."[9]