For me, Goodfellas is nearly a perfect movie. It tells a story, essentially from start to finish, and it's exciting the entire time. So, naturally, someone has to try to ruin it by creating a TV version no one really asked for:

AMC’s 1960s mad men may be soon joined by some goodfellas from the same era. The cable network, home of such acclaimed series as Mad Men and Breaking Bad, has put in development a series version of one of the most praised movies of all time, the 1990 Martin Scorsese mob classic Goodfellas. Nicholas Pileggi, who wrote the movie based on his non-fiction book Wiseguy, is on board to co-write the TV series adaptation with TV writer-producer Jorge Zamacona (Homicide: Life On The Street). The two will executive produce with the film’s producer Irwin Winkler and his son David. Warner Horizon Television, the cable TV production sibling of Warner Bros, which distributed Scorsese’s film, is producing the series.

I realize that Hollywood is out of ideas, so it's probably better to at least steal from quality source material, but isn't there another show from Europe we haven't adapted or something?