钢铁侠托尼·斯塔克(小罗伯特·唐尼 Robert Downey Jr. 饰)在国会听证上拒绝交出最新技术。与此同时,他发现胸口的微型电弧反应炉正迅速造成血液的钯金属中毒。沮丧的托尼将斯塔克公司的总裁职务交予了秘书波兹(格温妮丝·帕特罗 Gwyneth Paltrow 饰),由她全权负责正在进行的纽约斯塔克博览会。波兹从法律部门调来助理娜塔莉(斯佳丽·约翰逊 Scarlett Johansson 饰)照顾托尼。托尼在媒体前的高调亮相引起了其父当年同事的儿子,伊凡(米基·洛克 Mickey Rourke 饰)的不满。为了实施报复,他子承父业,研制出了一套可与钢铁战衣相媲美的装备。伊凡的技术引起了托尼的竞争对手,军火商贾斯丁·汉默(山姆·洛克威尔 Sam Rockwell 饰)的注意,他设法将伊凡劫持出狱,秘密研究取代钢铁侠。正当托尼苦于钯金属中毒造成的失意之时,他发现娜塔莉原来身负秘密使命,而自己的任性,也造成了与好友,空军上校罗尼(唐·钱德尔 Don Cheadle 饰)的反目,眼看局势就要失控……
By 1820, Edmund Kean is the most admired Shakespearan actor. But if his art is peerless, his free lifestyle is ill thought of, particularly by the high society. Kean has fallen passionately in love with Countess Elena de Koefeld, the wife of the ambassador of Denmark. Elena loves him too but hesitates to give up her rank in society and follow Kean. On the other hand, Anna, a rich heiress who refuses to marry Lord Mewill, the husband chosen by her parents, confesses her love for Kean and decides to become an actress like him... The aristocrats, outraged by Edmund's profligate ways, decide to boycott his performances and his career is broken. Kean does not recover from such a blow and, on a stormy night, dies in Elena's arms.