City Of God - Great movie loosely based on real events. It depicts the growth of organized crime in the Cidade de Deus suburb of Rio de Janeiro, between the end of the 1960s and the beginning of the 1980s, with the closure of the film depicting the war between the drug dealer Li'l Zé and vigilante-turned-criminal Knockout Ned. I HIGHLY recommend this movie
Se7en - The newly transferred David Mills (Pitt) and the soon-to-retire William Somerset (Freeman) are homicide detectives who become deeply involved in the case of a sadistic serial killer whose meticulously planned murders correspond to the seven deadly sins: gluttony, greed, sloth, wrath, pride, lust, and envy.
Fallen- Homicide detective John Hobbes witnesses the execution of serial killer Edgar Reese. Soon after the execution the killings start again, and they are very similar to Reese's style. Very gripping movie will have you on edge of your seat. I REALLY like this movie and HIGHLY recommend this one and even better it has denzel in it.