Complex sentence: In "The Godfather Part III", Zasa first appears at a party honoring Michael, where he gets into an argument with Vincent Mancini (Andy García), the illegitimate son of Michael's long-dead brother Sonny.
Split into simpler sentences: In "The Godfather Part III", Zasa first appears at a reception honoring Michael. He gets into an argument with Vincent Mancini (Andy García), the illegitimate son of Michael's long-dead brother Sonny.