Wow! So do I!. The plot is wery weak itself, and Pacino acting in a way "I'm not responsible for all this crap". Then nobody else is significant, Mary especially. Worse scene is after the theatre. Was Vinnie indeed such a fool in guns even? They all had to be surrounded by bodyguards. Anyone should arrange it all better. And ugly Tony, etc,etc...
From GF1 it's Mike coming to Kay to propose. So unnatural - you FEEL he would never do that, it's invented, artifical scene.