I enjoyed rewatching this classic Marty last weekend, as I've been on a Marty kick as of late, though I don't know what has inspired it. Goodfellas is a great film not because it is like the typical high-concept plot-driven crap of Hollywood, but that the film is character driven with good and memorable characters. Ray Liotta is well cast--esp. with his blue eyes that offer a convincing look into one who is half Irish and half Italian.
The ending is great and takes on new meaning when you think about those with certain advantages who suddenly get them all taken away: "I'm an average nobody... get to live the rest of my life like a schnook."