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Sophia Loren as Princess Olympia |
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Maurice Chevalier as Prince Philip |
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John Gavin as Charles Foster |
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Angela Lansbury as Countess Lina |
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Isabel Jeans as Princess Eugénie |
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Tullio Carminati as Albert |
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Milly Vitale as Can-Can Girl |
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Carlo Hintermann as Prince Ruprecht |
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Roberto Risso as Aide de camp |
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Friedrich von Ledebur as Count Sandor |
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Adrienne Gessner as Amelia |
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Luigi Cimara as |
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Waveney Lee as Countess Theresa |
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Walter Varndal as |
| Directing | Michael Curtiz | Director |
| Production | Marcello Girosi | Producer |
| Production | Carlo Ponti | Producer |
| Sound | Alessandro Cicognini | Original Music Composer |
| Camera | Mario Montuori | Director of Photography |
| Editing | Howard A. Smith | Editor |
| Art | Hal Pereira | Art Direction |
| Art | Gene Allen | Art Direction |
| Costume & Make-Up | Hoyningen Huene | Costume Design |
| Directing | Mario Russo | Assistant Director |
| Writing | Walter Bernstein | Adaptation |
| Writing | Sidney Howard | Writer |
| Writing | Ring Lardner, Jr. | Writer |
| Writing | Ferenc Molnár | Theatre Play |
| Writing | Karl Schneider | Writer |
