美国版《无间道》（The Departed）从10月6号全球公映以来，虽然看过港版《无间道》的观众对其有所毁誉，但是仍禁不住好莱坞大牌导演明星光环的诱惑，致使票房飙高。

片子到底如何？有公正的网友说：故事还是麦绍辉的蓝本，角色还是那几个：曾志伟变成了Jack Nicholson， 华少成了Matt Damon， 男主角由梁朝伟转到Leonardo DiCaprio , 黄秋生改为Martin Sheen。不同的是，刘嘉玲没有死，而郑秀文和陈慧琳被整合成一个人，同时周旋于两个男人之中，在感情的选择中陷入两难；而美国版的最大的成功是：故事说得比港版要简要，也更合情合理。Matt Damon几乎从小就成了Jack Nicholson的追随者，因为在拳头金钱出真知的Boston, 强者的定义就是征服他人。

【导演】：马丁-斯科塞斯 (Martin Scorsese)

【主演】：莱昂纳多-迪卡普里奥
               (Leonardo DiCaprio)
              马特-戴蒙 (Matt Damon)
              杰克-尼科尔森 (Jack Nicholson)
              马克-瓦尔伯格 (Mark Mark Wahlberg)
 
"The Departed" is set in South Boston, where the state police force is waging war on organized crime. Young undercover cop Billy Costigan (Leonardo DiCaprio) is assigned to infiltrate the mob syndicate run by gangland chief Costello (Jack Nicholson). While Billy is quickly gaining Costello's confidence, Colin Sullivan (Matt Damon), a hardened young criminal who has infiltrated the police department as an informer for the syndicate, is rising to a position of power in the Special Investigation Unit.

Each man becomes deeply consumed by his double life, gathering information about the plans and counter-plans of the operations he has penetrated. But when it becomes clear to both the gangsters and the police that there's a mole in their midst, Billy and Colin are suddenly in danger of being caught and exposed to the enemy – and each must race to uncover the identity of the other man in time to save himself.

Legendary director Martin Scorsese takes the helm for this tale of questionable loyalties and inspired by the wildly popular 2002 Hong Kong crime film Infernal Affairs. As the police force attempts to reign in the increasingly powerful Irish mafia, authorities are faced with the prospect of sending in an undercover agent or seeing their already frail grip on the criminal underworld slip even further.

Billy Costigan (Leonardo DiCaprio) is a young cop looking to make a name for himself in the world of law enforcement. Collin Sullivan (Matt Damon) is a street-smart criminal who has successfully infiltrated the police department with the sole intention of reporting their every move to ruthless syndicate head Frank Costello (Jack Nicholson).

When Costigan is assigned the task of working his way into Costello's tightly guarded inner circle, Sullivan is faced with the responsibility of rooting out the informer before things get out of hand. With the stakes constantly rising and time quickly running out for the undercover cop and his criminal counterpart, each man must work feverishly to reveal his counterpart before his identity is exposed by the other.