Skip Scarface, I'll give you a quick synopsis. Robert De Niro sells cocaine, business is booming, life is great, he's the best and smartest criminal in history, what a good life! I guess on top of selling all the coke he should also be doing all the coke, wow, this is even better than before! He's a genius! Oh shit, the feds found out about his operation, no problem he's a badass, he'll just take em' all it with his AK! Oh, wow that plan did not go well at all... The end.
Now watch Goodfellas instead. And try to figure out if any of the characters (including the narrator) are "good guys".