I agree Goodfellas is ace.. . superb poster to go with a superb film...
Sleepers reminds me a little of the goodfellas poster, all black with the faces at the top then the smaller pic at the bottom.
Not as much as a good poster image but there was a message on the quad for Doug Limans "Go" that said,
Persons under 18 should sit outside with some lemonade.
thought that was quite humourous
Another good mafia crime film poster is Once Upon a Time in America. You have the young children walking in an industrial part of New York with the tall buildings and the steelworks in the background. You get a real sense of the immigration theme of the film.