Complex sentence: These two styles of filmmaking need not be mutually exclusive however, which shows how postmodernism has been absorbed into the modern lexicon of filmmakers, and has become just another way to explore themes and characters.
Split into simpler sentences: These two styles of filmmaking, however, need not be mutually exclusive. Since postmodernism has been absorbed into the contemporary lexicon of filmmakers, it has become just another way to explore themes and characters.