When Prins Willem-Alexander wants to take the throne during a zombie outbreak on Queensday, his resourceful wife must lead the royal party strait through Amsterdam to the Palace on the Dam for his coronation; gracefuly end the ceremony with the balcony scene and leave by helicopter.

His wife is the main character. She "leads"" the way .

Have to think about the rest of the questions...

There is a zombie outbreak, why is this ceremony so important? I mean the job of King is pretty much ceremonial?in this day an age, more of a figurehead with no power. why is the goal of being crowned more important than stopping the zombies?

(btw, when I ask why is the ceremony so important given the zombie outbreak... I mean it should be in the Logline)

The structure of the logline is throwing off the read. If the zombie outbreak is the inciting incident open with that, i.e: After a zombie outbreak, Prince Willem-Alexander must...

Secondly, who is the main character the prince or his wife?

Last note, the prince and his wife seem rather selfish - a zombie outbreak is wreaking havoc in their kingdom and all they can think about is taking over the throne. Should they not want to save their people or at least their family?