The best ever movie, i would dare to say, and most of you would obviously agree..!! '"I'm going to make him an offer he can't refuse" , is one of the best quote so far...!!! The performance of Marlon Brando and Al Pacino cannot be termed as performance even, they have lived through the life of Vito Corlene and Mikey. Not only them, but all the characters have contributed their best for making the the Classic. Every other movies that has been considered as great movie, since after the time of The Godfather, has been some or the other way being influenced by this movie. Remember, Kamal Hassan scrapping his head in 'Nayyagan'..??? It is also a take away from the movie. Style of Mani Ratnam's 'Thalapathy' is also largely on this movie. Even the lighting, scene flow, the dialogues and the only-lightly emotional nature of the main characters is also attributable to this movie.
If You consider the movie is irresistible, try reading the original book written by Mario Puzo. Simply Awesome. Except for the details and the slight variation of more concentration to the Movie Star's life, the movie is generally following the book. The movie, as everyone would accept has an impeccable flow. Even the most important scenes are in the same flow, think of the scene of Don being shot outside his office. Except for the (relatively) fast moving characters and scenes nothing would suggest You the kill. But still these small variations are enough to suggest that something important is to happen.
I remember reading this somewhere regarding the selection of Marlon Brando for the character.The Francis Ford Copola team of the Movie went to Marlon Brando, who was having a sloppy side of his career, and gave the brief of the character to be played by the Hero. After hearing the brief, Marlon went into his closet and took a very long time to come out. The team was getting bored and was about to leave, when Marlon came out of his room with full make-up, perfectly matching the character told to him and asked when are You going to start the shooting..!!! That was the dedication and eagerness showed by Marlon Brando which is well visible is in the movie. The second part of the movie is also good, but the third part is comparatively bit less, in impressing the Critic lobby.
The movie is simply a great feast to watch, relish, remember and recommend.