An actor who played a major role in the first Godfather movie famously claimed to be the nephew of the real-life leader of one of the mafia's Five Families. The actor was controversially fired from his role during pre-production of The Godfather Part II, while the uncle would also be spectacularly terminated (in a manner of speaking) by John Gotti in 1985. Give the shared surname of both men.
CASTELLANO (Richard and Paul)