FAQ for
The Godfather: Part III (1990)

Winona Ryder was originally cast in the role but ended up dropping out due to "exhaustion." Coppola didn't have time to go through the process of finding another actress who'd be available on such short notice. He had all confidence his daughter would be up to the challenge.

Sonny and his wife, Sandra, have four children--twin girls Kathryn and Francesca, and sons Santino Jr. and Frank. The whereabouts of Sonny's widow and children are never discussed in the films, but in the book, Sandra moves away with the children after Sonny's death. They appear in Parts II and III in the family photos, but they were not raised on the Corleone family compounds.

It is never explained why Santino Jr. and Frank never join the Family Business. However, Sandra's moving away from the family compound indicates a desire to remove herself from the Corleone Family and the mafia life. One can only assume it was not a life she wanted for her sons, and since they were not brought up on the compound and exposed to "Family" life, they were not prepared, nor were they expected to take part in The Business.

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