While dealing with serious issues, the film conveys a comedic tone. The film is true to the overall spirit of the book upon which it is based, but dramatic license was taken with certain events that were created solely to add dramatic elements. For example, the failed prison break and the resulting death of an innocent inmate are fictional plot points not found in Donald Powell Wilson's book,[citation needed] although the book may itself contain plot contrivances.[2]
Production
The film was shot on location at San Quentin State Prison, where warden Clinton Duffy had implemented reforms that sought to rehabilitate prisoners much in the same way as does the Doc character.[3]
Because of San Quentin's strict policy prohibiting women from entering the inner prison area, a short prison guard was asked to impersonate the Mrs. Randall character in long shots. Actress Carol Savage portrayed the character in closeup studio shots.[4]
Musical director Dimitri Tiomkin visited Sing Sing prison to hear the prisoners' band and songs sung by the prisoners in preparation for his film score.[5]
Reception
In a contemporary review for The New York Times, critic A. H. Weiler wrote: "... [P]enology, psychology and crime have been blended into a compassionate, thoughtful, incisive and, above all, genuinely humorous account of life behind prison walls. ... There may be doubters who will scoff at the possibility of a convict such as Connie being permitted to leave the penitentiary (under guard) to open a bank safe but as played by Millard Mitchell, who runs off with the acting honors, the facts are not particularly important."[6]
Director Hugo Fregonese received fan letters from prison inmates and said, "I'm flattered. After all, these are the first fan letters I've ever received."[7]