Movie
The Soviet Union wants more influence in Europe and decides to get more power by giving the nation of Boufferia a new king, an easy to handle drunkard, because they don't have enough power over the current king.
Do - The Prince
Re - The Archbishop
Mi - The Singing Star
Fa - The Fascist
Sol - The Hairdresser
La - The Prime Minister
Si - The Trading Politician
chief of the royal guard