At least for this period; because you know better than me that during the late fifties and early sixties, there were hundreds - maybe not thousands - of short black and white crime movies, mostly produced by Butchers or Danziger's companies, and a few other ones too. Most of them, the bulk of this huge batch are forgettable, only a few emerge from my memory; I have seen so many of them. Some are excellent, for instance Sidney Hayer's' PAYROLL or Cliff Owen's PRIZE OF ARMS. No one can miss LEAGUE OF THE GENTLEMEN, light hearted though. This one is excellent because adapted from a Douglas Warner's novel, also terrific story, but maybe a bit old fashioned from today's standards. It is a shame that no more novels of this author were put on screen, big or small.
Review of Underworld Informers
