Don't forget the fact that Moretti did not approve of Sinatra's divorce and advised him to take care of his family. It is just like the "be a man" sequence in the beginning of GF1.

Moretti's daughter was married in 1947 or 1948 in her father's backyard. It was a typical wedding for a wealthly Italian family except for the singer - Frank Sinatra.

Sinatra was not happy with being so closely identified with Johnny Fontaine. He got into a shouting incident with Mario Puzo at a restaurant that is described in Lebo's book about the making of the Godfather movies.