there are a few really. When Vito learns of Sonny's death. The dance scenes in each film, when Vito loses his job in the grocery store, and of course the Scream in pt III. I personally love the scene of Micheal and Vito outside when Vito tells him that he had hoped for Mike to one day be Senator. He reveals his true motives and his dreams. I think that micheal inherits this same dream.