Complex sentence: Osvaldo "Ozzie" Altobello is a fictional character and the primary antagonist of the film "The Godfather Part III", and the novels "The Godfather Returns" and "The Godfather's Revenge".
Split into simpler sentences: Osvaldo "Ozzie" Altobello is a fictional character and the primary antagonist of the film "The Godfather Part III". He also appears in the novels "The Godfather Returns" and "The Godfather's Revenge".