I thought the unglamorous drudgery of these crooks trying to eek out a living with the worst kinds of scores -- a parking meter, for example -- had some resonance with the low level crooks on the Sopranos.
What I remember most in the Sopranos connection is what a big deal the movie made of the terms "our friend"/"friend of ours" versus "my friend"/"friend of mine" in distinguishing between made and non-made guys. This, I felt, was a critical clue to understanding The Test Dream, and I've since watched mob documentaries that confirm the use of those terms as code for made/unmade guys. Even the Sopranos makes use of the terms numerous other times.
Tony, his spirits crushed after b-lining to the fridge first thing in the morning: "Who ate the last piece of cake?"