Goodfellas : I have a question…

Hi guys,

I have a question that I really need to know. How is the dark side (dark side of human nature) presented in this film? It would be great that you guys would tell me in just a small details or maybe more if you want to tell me, and I would be really thankful.

And then I have another question that I need to know too about dark side of human nature, what is the biggest problem of our world today and what can YOU do to make it better?

Thank you.

I would be grateful too if you guys would answer me as soon as possible before the IMDb message boards closes in about two weeks or so. And I really need your help.

Thank you.