There are talky films and then there are Coen Brothers' films. They don't just enjoy writing dialog; they seem to revel in it.
"Miller's Crossing" is probably the finest example of their writing (Big Lebowski fanboys, stop frothing.) But the patois in Miller's Crossing often gets confusing. For instance, who or what is a "sheeny"? And ever met a "yegg"?
If you haven't seen this great film, read this site first and then rent it. The site also has a link to the screenplay (the shooting script, I believe.)
What's the rumpus, Tom?