"Great Guy" was the first Jimmy Cagney produced film from Grand National Pictures and brings to the screen the reality of widespread corruption in the 1930's during FDR's New Deals. The movie does a good job of shedding light on that intriguing era and uncovers various plots and schemes that go all the way up to the highest offices. Cagney finds himself temporarily in charge of the Bureau of Weight and Measures and when not running down short-shifting green grocers and heavy-thumbed butchers Cagney sets his sights on a juicy, and dangerous, nest of corrupt politicians. Cagney is engaged to pretty young Mae Clarke, who is secretary to a city leader, a benign philanthropist by day and, Cagney hunches, a graft raking extortionist by night and the plot hinges on how Clarke responds to Cagney's accusations against her employer. The "Great Guy" is a movie that invites us to see if Cagney will compromise his integrity, by easing up on the grafting philanthropist, to save his relationship with the winsome Clarke or whether Clarke will ever realise what a truly great guy this pugnacious, temporary manager of the Bureau of Weights and Measures really is?