I consider The Godfather and The Godfather pt. II as my all-time favorite movie. When I am channel surfing and come across it being aired I will watch it. I can't really say that about any other movie EXCEPT The Right Stuff. I know pt. III gets a lot of raspberries but the heart of the story is what I like. Michael Corleone coming to grips with his past and dealing with his mortality, acknowledging his buried feelings for Kay, and trying to get the family legit only to be subterfuged by, of all things, the Vatican. Plus, Pacino's cry/scream at the end of the movie is one of the best acting moments ever captured on film. If nothing else, that scene makes the movie watchable. Sophia Coppola couldn't act her way out of a but I admit I really do like pt. III.
Also, has anyone else mentioned Battlefield:Earth?