After naively inviting her daughter’s various ‘godfathers’, a mafia overlord must prevent her wedding from becoming a gang war

Richiev makes a good point, but...

This concept will inevitably be compared to the opening sequence of the "The Godfather".? In that sequence, Don Corleone has invited his rivals to his daughter's wedding.? And Don Corleone was not naive, was nobody's fool.? The reason why Don Corleone invited them was because the mafia did have a code of conduct.? A wedding was a safe haven, a day of standing down; it was unthinkable? for anyone to dishonor the Godfather, to defile the occasion? with violence.? ?That has become the standard convention.

To make the premise of this story plausible, it will be necessary to explain why the boss invited them and why they violated their own code of conduct.

Also, why always the Sicilian mob?? IMHO, it's such an overused trope.? In these times, there are plenty of other ethnic groups to choose from.

I agree with Wayne, great premise

However, I don't understand how a mafia overlord would be so naive about mob politics; that he would invite a bunch of feuding rivals to his daughter's wedding.

I like it!? Appears like it would be a script with lots of opportunity for conflict and comedy.? Maybe you could state the overlord's flaw - this might give us more insight into the genre and theme