3. The Godfather: Part II (1974)
Starring some of the best actors of Hollywood like Al Pacino, Robert De Niro and Robert Duvall, this movie is a masterpiece that is almost impossible to beat. This film is, without a doubt, is one of the all-time greats. The plot goes like this:
The early life and career of Vito Corleone in 1920s New York City is portrayed, while his son, Michael, expands and tightens his grip on the family crime syndicate.
This movie scores 9/10 on IMDB and 96% on Rotten Tomatoes. One interesting piece of trivia is that Robert De Niro spent 3 months in Sicily and spent a total of four months learning to speak the Sicilian language so that he could play the character of Vito Corleone.