2. The Godfather
Speaking of unbeatable performances, theres no way that any living actor could play a better Vito Corleone than Marlon Brando or Robert De Niro. Nor, for that matter, could anyone a better Michael Corleone than Al Pacino. For those reasons and many others The Godfather series should never be remade. The Godfather series is the magnum opus of Francis Ford Coppolas career. The first two films were so good that he couldnt even top them himself when it came to Part III. Another filmmaker could never, ever repeat this excellence. All wed get was a pale imitation, which isnt on anyones wish list. Although its easy to be envious of a parallel universe where The Godfather Part III somehow lived up to the high bar of expectations raised by The Godfather and The Godfather Part II, its not worth remaking two classic films to try and improve on a disappointing third instalment.