Movie I been searching for.for so very long.PLEASE HELP!!?

I've been looking for this movie for a long while now.In the beginning of the movie the mom died rite in front of her 2 young sons of a drug overdose.The way she died was very comical (this movie is very comical and gangster). Over time when the 2 brothers become older they decide to sell drugs and soon become the biggest drug dealers in their state. One brother have flash backs of his mother death & takes care of his father (I think?) while the other 1 is very ruthless and could careless about his father. Awhile goes by and the oldest brother (I believe) becomes in wanting something more he falls in love with this woman.Now before all the future answers comes in for this movie I just need to let you guys know that this is a all black cast. Hopefully someone knows what movie I'm speaking of and can help me put this endless search to rest.Thanks.