Manhattan Melodrama

Manhattan Melodrama is a 1934 gangster picture starring Clark Gable. Taking place in New York City, it's centered around the lives of two orphans raised as step-brothers, one of whom, Blackie Gallagher, grows up to be a gangster. The other, Jim Wade, becomes the assistant district attorney. Despite being on opposite sides of the law, they still care for each other. However, a Love Triangle and criminal happenings begin to put a strain on their relationship.

So, essentially, Exactly What It Says on the Tin.

Mostly though, it's remembered because it was the movie John Dillinger had just seen before he came out of the theater and was gunned down by the FBI.

Tropes used in Manhattan Melodrama include:

Damn, It Feels Good to Be a Gangster!^[context?]
Dirty Cop: They're happy to take bribes.
Downer Ending: Blackie dies.
Incorruptible Pure Pureness: Jim Wade
Love Triangle^[context?]
Parental Abandonment