Fat Andy Ruggiano used to show up on the set of Analyze This and pal around with De Niro. I may be wrong, but I think it was Anthony Corozzo (Little Nick's brother) who introduced De Niro to Fat Andy. I know Anthony Corozzo has been friends with De Niro and Pesci for a thousand years. He has probably introduced De Niro to everyone in the Gambino family .

But Ruggiano went way back in the life. He got made under Anastasia.