Nothing that I've ever read suggested that Castellano didn't play Clemenza in II because he didn't approve of Clemenza turning traitor. It was money, plus his demand that his girlfriend, Ardell Sheridan, to write dialog for him.
Ntra la porta tua lu sangu � sparsu, E nun me mporta si ce muoru accisu... E s'iddu muoru e vaju mparadisu Si nun ce truovo a ttia, mancu ce trasu.
