The Public Enemy (William A. Wellman, 1931)

7/10
Pretty good. Goes into a bit more character depth than the last 30's gangster movie I saw (Little Caesar) but retains the basic 'childhood friends (brothers in this instance) take divergent career paths' premise with more than a bit of preaching. James Cagney is very good in his first starring role, and the ending is pretty unforgettable.

The Ox-Bow Incident (William A. Wellman, 1943)

10/10
Absolutely loved it. Everything about it was perfect. A simple story and lesson that remains relevant even today. Go rent it.