I believe that a bio about Carlo would be great. But there may not be enough info about him to make an exciting movie. At that point, we'll get directors/screen writers putting complete BS into the script, similar to what we got with The Iceman and Gangster Squad.

My choice is Frank Costello. His life would include stories with Lucky, Vito, Lansky, Copacabana, La Guardia, Carlos Marcello/Huey Long; his hand ballet at the Kefauver hearings, his involvement with setting up Vito Genovese with a fake drug bust, getting shot by the Chin, his nearly unsurpassed skill with bribing politicians and cops, appointing judges, his lavish lifestyle, final years in comfortable retirement, his mausoleum getting blown up by Galante, etc...