类型：剧情 爱情 喜剧
导演：威廉·惠勒 William Wyler
主演：格里高利·派克 Gregory Peck
奥黛丽·赫本 Audrey Hepburn
埃迪·艾伯特 Eddie Albert
Ann (Hepburn 饰)是某国家的王妃。她正在对包括罗马在内的几个欧洲国家首都进行大范围的公示访问的途中。有一天晚上，她被公务的繁重的要求压垮了，她的时间被安排的紧紧的。她的医生给了她镇静剂，让她镇静下来，给她助眠，但她偷偷离开了她的国家的大使馆，亲自体验了罗马。
注射的镇静剂最终生效，她在一张长凳上睡着了，美国侨民记者Joe Bradley (Peck 饰)路过这里看到了她。由于不认识她，他给了她钱让她坐出租车回家，但是一个昏昏欲睡的“Anya Smith”(她自称自己是这个名字)拒绝合作。为了安全起见，Joe 终于决定让她在他的公寓里过夜......
Ann (Hepburn) is a royal princess of an unspecified country. She is on a widely publicized tour of several European capitals, including Rome. One night, she is overwhelmed by the strenuous demands of her official duties, where her day is tightly scheduled. Her doctor gives her a sedative to calm her down and help her sleep, but she secretly leaves her country's embassy to experience Rome by herself.
The injection eventually takes effect and she falls asleep on a bench, where Joe Bradley (Peck), an expatriate American reporter, meets her. Not recognizing her, he offers her money so that she can take a taxi home, but a very drowsy "Anya Smith" (as she calls herself) refuses to cooperate. Joe finally decides, for safety's sake, to let her spend the night in his apartment. He is amused by her regal manner, but less so when she appropriates his bed. He transfers her to a couch without awakening her. The next morning, Joe hurries off to work, leaving the princess still asleep.
When his editor, Mr. Hennessy (Hartley Power), asks why he is late, Joe lies to him; he claims to have attended a press conference for the princess. Joe makes up details of the alleged interview until Hennessy informs him that the princess had suddenly "fallen ill" and the conference had been canceled. Joe sees a picture of her and recognizes the young woman. Joe and Hennessy end up making a bet on whether Joe can get an exclusive on the princess.
Joe realizes he is sitting on a windfall. Hiding the fact that he is a reporter, he offers to show Rome to Anya, but not before getting his photographer friend, Irving Radovich (Eddie Albert), to tag along to secretly take pictures. However, Anya declines Joe's offer and leaves.
Enjoying her freedom, on a whim, Anya gets her hair cut short in a barbershop. Joe follows and "accidentally" meets her again. They spend the day seeing the sights, including the "Mouth of Truth", a face carved in marble which is said to bite off the hands of liars. When Joe pulls his hand out of the mouth, it appears to be missing, causing Anya to scream. He then pops his hand out of his sleeve and laughs. Hepburn's shriek was not acting — Peck decided to pull a gag he had once seen Red Skelton do, and did not tell his co-star beforehand. Later, Anya shares with Joe her dream of living a normal life without her crushing responsibilities. That night, at a dance on a boat, government agents finally track her down and try to escort her away, but a wild melee breaks out and Joe and Anya escape. Through all this, they gradually fall in love, but Anya realizes that their relationship cannot continue. She finally bids farewell to Joe and returns to the embassy.
During the course of the day, Hennessy learns that the princess is missing, not ill as claimed. He suspects that Joe knows where she is, and tries to get him to admit it, but Joe claims to know nothing about it. Knowing Joe's feelings for Anya, Irving reluctantly decides not to sell his photos.
The next day, Princess Ann appears at the delayed news conference, and is surprised to find Joe and Irving among the members of the press. Irving takes her picture with the same miniature cigarette lighter/camera he had used the previous day. He then presents her with the photographs he had taken that day, as a memento of her adventure. Joe lets her know, by allusion, that her secret is safe with them. She, in turn, works into her bland statements a coded message of love and gratitude to Joe. She then departs, leaving Joe to linger for a while, contemplating what might have been.
格里高利·派克 Gregory Peck .... Joe Bradley
奥黛丽·赫本 Audrey Hepburn .... Princess Ann
埃迪·艾伯特 Eddie Albert .... Irving Radovich
Hartley Power .... Mr. Hennessy
Harcourt Williams .... Ambassador
Margaret Rawlings .... Countess Vereberg
Tullio Carminati .... Gen. Provno
Paolo Carlini .... Mario Delani
Claudio Ermelli .... Giovanni
Paola Borboni .... Charwoman
Alfredo Rizzo .... Cab driver
Laura Solari .... Secretary
Gorella Gori .... Shoe seller
Heinz Hindrich .... Dr. Bonnachoven
John Horne .... Master of Ceremonies
Andrea Esterhazy .... Embassy staffer (as Count Andrea Esterhazy)
Ugo De Pascale .... Embassy staffer
Diane Lante .... Lady in waiting
Armando Ambrogi .... Man on phone (uncredited)
Armando Annuale .... Dancer (uncredited)