One of the greatest studies of character development you will see. From his mind changing experiences in the war to his cold blooded disrespect of life. Then ( retrospectively) an ageing somewhat remorseful man waiting for the final reward to ease the pain. Absolute consummate Scorsese , a man still at his peak with more than likely his final nod to the genre he has not just dominated but made his own. Watch this film as many times as it takes. Far too many negative reviews for this masterpiece.