Simply amazing. An essential gangster/mafia movie to watch and also packed with culture both surrounding it with Jay-Z making an entire album about it and having cultural icons such as RZA, Denzel Washington, Russel Crowe, Cuba Gooding Jr., Josh Brolin, Idris Elba and T.I. The setting is also a cultural aspect though; being set in Harlem in the 70s it depicts a huge drug problem in New york as we follow the lead supplier in this problem, also showing smuggling drugs and supplying drugs via the Vietnam war was an extra touch. Phenomenal characters + great acting + a compelling story; I mean -- what else could you want. At that point the only thing that could happen to make it better would be having Martin Scorcese and Al Pacino work on this! This movie definitely falls under the "iconic" category, no doubt about it.
10/10!