在一次差点丧命的车祸之后，大卫·张伯伦有了一个空前的发现。这一发现不仅将决定他的家人的命运，也将决定整个人类的命运。

　　从郊区的家里被送去汽车修理店工作后，一名年轻男孩的生活有所改变，直到一次契机迫使他做出艰难抉择。

　　天使加百列（基努·里维斯 饰）为了向打零工维生的阿杰（阿兹·安萨里 饰）证明金钱无法带来真正的幸福，于是让他跟富有的科技新贵杰夫（塞斯·罗根 饰）交换人生，没想到阿杰非常享受杰夫的奢华生活。行动失败的加百列因此失去了翅膀，被迫到地球上跟凡人度日。

　　John Kent (Randolph Scott), a former star football player at Harvard, goes to Paris with his friend Huck Haines (Fred Astaire) and the latter's dance band, the Wabash Indianians. Alexander Voyda (Luis Alberni) has booked the band, but refuses to let them play when he finds the musicians are not the Indians he expected, but merely from Indiana (Huck Haines and his Indianians Band).
　　John turns to the only person he knows in Paris for help, his Aunt Minnie (Helen Westley), who owns the fashionable "Roberta" gown shop. While there, he meets her chief assistant (and secretly the head designer), Stephanie (Irene Dunne). John is quickly smitten with her.
　　Meanwhile, Huck unexpectedly stumbles upon someone he knows very well. "Countess Scharwenka", a temperamental customer at Roberta's, turns out to be his hometown sweetheart Lizzie Gatz (Ginger Rogers). She gets Huck's band an engagement at the nightclub where she is a featured entertainer.
　　Two things trouble John. One is Ladislaw (Victor Varconi), the handsome Russian deposed prince and doorman who seems too interested in Stephanie. The other is the memory of Sophie (Claire Dodd), the snobbish, conceited girlfriend he left behind after a quarrel over his lack of sophistication and polish.
　　When Aunt Minnie dies unexpectedly without leaving a will, John inherits the shop. Knowing nothing about women's fashion and that his aunt intended for Stephanie to inherit the business, he persuades Stephanie to remain as his partner. Correspondents flock to hear what a football player has to say about feminine fashions. Huck gives the answers, making a lot of weird statements about the innovations John is planning to introduce.
　　Sophie arrives in Paris, attracted by John's good fortune. She enters the shop, looking for a dress, but is dissatisfied with everything Stephanie shows her. Huck persuades her to choose a gown that John had ordered discarded as too vulgar. When John sees her in it, they quarrel for the final time.
　　John reproaches Stephanie for selling Sophie the gown. Terribly hurt, Stephanie quits the shop. With Roberta's putting on a fashion show in a week, Huck takes over the design work, with predictably bad results. When Stephanie sees his awful creations, she is persuaded to return to save Roberta's reputation.
　　The show is a triumph, helped by the entertaining of Huck, Countess Scharwenka, and the band. (A pre-stardom Lucille Ball, with platinum blond hair, appears uncredited in her first RKO film[4] as a model wearing an elaborate feather cape, after the vocal by Dunne, in the fashion show.[5]) The closing sensation is a gown modeled by Stephanie herself. At the show, John overhears that she and Ladislaw are leaving Paris and mistakenly assumes that they have married. Later, he congratulates her for becoming a princess. When she informs him that Ladislaw is merely her cousin and that the title has been hers since birth, the lovers are reunited. Huck and Lizzie, who decide to get married, do a final tap dance sequel.

　　剧情讲述一群小朋友探索追踪一个中世纪祸害——名叫Morgana、是亚瑟王同父(母)异母(父)的妹妹的故事。路易斯饰Alex，偶然发现了亚瑟王的圣剑“Excalibur”，泰勒饰他的同伴兰斯洛特，Denise Gough饰他的母亲，Imrie饰年轻版梅林，斯图尔特有望饰演老版梅林，弗格森则有望饰演大反派Morgana。该片由福斯发行，充满动作冒险元素。