gangster culture

in the 1990 mob movie Goodfellas you can get a really good glimpse at the various cultures that make up a gang in NYC from the mid 20th cenury on. what most of the common known mafia groups are is Italian or of Italian decent. when you are in the mob you have to be one hundred percent italian to ever be made, which is pretty much becoming a boss of your own crew. this is so that people could trace back your family to the old country where the mob came from. the main characters henry and jimmy could never be made because they had irish blood in them even though they were really good gangsters. also the main character henry had to pretent to be jewish so that his girlfriend's parents would approve of him and let them date.