Great Actors In the Greatest Movie Ever
Pacino and Brando were both masterful. James Caan was great and intense; Robert Duvall's performance was, perhaps, even more believable, and certainly more enjoyable.
I can't say enough good thing about the film. It was shot beautifully. While definitely full of violence, it is not gratuitous violence, but very essential to the story. Michael Corleone's commitment to his family, added to his smarts and nerves of steel, seal his fate--he becomes what he never wanted to become.
The only scene I find flawed is when Tom Hagen has just returned from his trip out to California, and he sits down to talk with Sonny and Don Vito about the upcoming appointment with Virgil "The Turk" Sollozzo. There is an unnatural moment as they're all sitting down that almost feels like the actors had not started the dialog on cue. The awkward half second should have been cut. A better way would have been to have had their voices already started in conversation as we see Tom's plane taxiing in. Then the audio track would continue seamlessly as the picture jumps to them already seated, gesturing, Sonny cracking nuts, etc.
I don't know how many times I've watched this picture. It is truly great.