A European princess jeopardizes her crown when she falls for an American millionaire.
Sophia Loren
Princess Olympia
Maurice Chevalier
Prince Philip
John Gavin
Charles Foster
Angela Lansbury
Countess Lina
Isabel Jeans
Princess Eugénie
Tullio Carminati
Albert
Milly Vitale
Can-Can Girl
Carlo Hintermann
Prince Ruprecht
Roberto Risso
Aide de camp
Friedrich von Ledebur
Count Sandor
