if there were the flashback scenes (like pt II) then DeNiro would have to play Vito and Pacino would have to return as Micheal. If not then to hell with the film. I would love to see Micheal Madsen in the film somewhere. I also like giamatti among others. I also like the idea of Mark Wahlberg as either Sonny or maybe the return of his son Frank. I would find something for Harvey Kietel too.