Honestly, it has been a while since I have seen this flick and I should definitely re-watch it whenever I get the opportunity. Anyway, in my opinion, it was definitely the first masterpiece produced by Martin Scorsese and Robert de Niro. I mean, 3 years before, they had already made 'Mean Streets' together and it was already a real breakthrough for both of them but it is with this movie that they really started to change cinema as an Art and they will keep doing it, at least twice again with 'Raging Bull' and 'Goodfellas'. Even if nowadays De Niro has lost his edge, he will still be remembered forever for this unforgettable piece of art. Indeed, he gave one of the best perfomances of his prestigious career and, plain and simply, one of the best performances ever given on a motion picture. For Scorsese, its status changed forever from promising young director to bonafide master. I mean, the whole thing was made with so much skills, every detail was closed to perfection and the story is just completely fascinating, a profound and dark study of the human soul. To conclude, it is a great classic, I just love it and it is a must see for any movie lover.