I watched a film made in the 70's called the Godfather the other night...wasnae bad.
Seriously though, along with Part II it's a great story and always has me, despite their length, glued to the screen, mesmerised. I think that's the secret to their success. The plot is irrelevant, I mean, you need some idea of what is going on, but the films are really just about the development of the "family" over the years. It's actually quite sad to see the decline of the Corleone's family unit (depite them being murdering mafia scum!). Both films complement each other with the flashbacks in Part II a nice touch (I bet De Niro was cursing Brandos stupid bloody accent from Part 1 that he then has to replicate in Part II!).
Part III quite rightly gets slagged, but then there was no need for this film and it had a lot to live up to and there is the time lag between II and III also which was always going to be difficult to overcome- Part III is a completely different kettle of fish. I still like it though, and it seems to ram home just how much, despite the wealth aquired, Pacino has failed to lead the Corleone family in an ever changing (under)world and live up to his father's teachings.
10/10
PS apologies if the films are covered elsewhere in this post!