American Gangster(2007)

Based on the life of drug-kingpin-turned-informant, Frank Lucas, who grew up in segregated North Carolina where he watched as his cousin was shot by the Klan for looking at a white girl. He eventually made his way to Harlem where he became a heroin kingpin by traveling to Asia's Golden Triangle to make connections, shipping heroin back to the US in the coffins of soldiers killed in Vietnam. He soon made upwards of one million dollars a day in drug sales. Lucas was shadowed by lawman, Richie Roberts, who finally helped bring the kingpin to justice. The two then worked together to expose the crooked cops and foreign nationals who made importing heroin so easy.