Unbelievable that part 3 is the lowest on the IMDB ranking, since it is the best by far. This is the best movie I've ever seen.

Rating: 10/10 (24 February 2002)

The Godfather is a great movie. Truly great. I've given it 10/10, and I don't generally do that. The Godfather 2 is a very good movie. Yet The Godfather 3 goes beyond both its predecessors, and is easily the best of the three. It might well be the best movie I've ever seen.
It combines all the strengths of the past godfathers (great acting, great scenes, thrilling story, etcetera), but it adds something to it. What is new is subtlety and true tragedy. This last part has the main character really think about what he has done in his life - ethics finally catch up with him. This makes for interesting psychological and ethical questions not seen in the previous two movies. There is another storyline going through all this - the difficulty to get out of a criminal position once you are in it is demonstrated beautifully by the difficulties the Corleones have with becoming legal.
I won't spoilt the end of the movie by telling what happens, but this is another great point. No 'victorious' ending like part 1, no bleak ending like part 2, but the purest tragedy. Truly beautiful. I commend this movie to anyone, though you should watch the previous two movies first.