Anita Ekberg's voice
She is a Swedish actress, and this was an Italian film. However, she was not fluent in Italian (at least not yet). So how were they able to solve this problem?
I don't know if even in its native Italian she was same-language-dubbed (dubbed by someone else), but I do know that these voice artists worked on this film in its said native Italian:
Lilla Brignone: Anouk Aimée
Gabriella Genta: Yvonne Furneaux
Romolo Valli: Steiner
Gianni Musy: Alain Cuny