Myron Breckinridge is waiting for his sex-change operation while a stoned surgeon stumbles into the operating room. Before the drugged doctor begins Myron's operation, he counsels him. Myron persists and the doctor goes through with it. An enthusiastic audience observing the operation applauds the medical achievement and rises in a standing ovation. After the operation, Myron arrives in Hollywood as Myra while in the rest of the film Myron pops up from time to time as Myra's alter ego. Myra goes to an acting academy owned by her uncle, Buck Loner, a former cowboy star. The real reason for Myra's arrival is to claim her half of Uncle Buck's estate, which she says she's entitled to. Buck Loner stalls by giving her a job teaching the history of motion pictures. Buck Loner has several friends. One of them is Letitia Van Allen, an ancient Hollywood talent scout. The sex-starved septuagenarian runs an acting agency "for leading men only."

史莱克生活在平凡的世界中——他本身是一个其貌不扬的怪物，绿色的身体，古怪的脾气，不爱干净的懒散生活。这天他家里来了几个不速之客，他们告诉史莱克，自己来自一个残暴国王统治下的王国，现在已经无家可归了。而且，那个残暴的国王还掠夺了一个美丽非凡的公主，打算强占为妻。
　　史莱克虽说丑陋，却心内善良。在领主的威逼下，无奈下他只能前去搭救公主，同时心想一睹公主芳容。路上，他遇到了一个话痨骡子，骡子知道了史莱克的事迹，决定忠心耿耿为之效劳。
　　前路有喷火恶龙等着和他们搏斗呢，他们能不能闯过难关，上演完美的英雄救美童话？

赫伯特的女朋友离开他之后，赫伯特非常沮丧，开始找工作。他终于在一个大房子里找到了一个，里面住着许多女人。他能和所有这些女人住在同一个家吗？

塔克中尉（丹尼斯·奎德 Dennis Quaid 饰）性格冲动，蔑视威权，但他同时是开发缩微飞行器技术的“阿尔法计划”的主驾驶员。塔克酒后胡作非为导致记者女友莉迪亚（梅格·瑞恩 Meg Ryan 饰）愤怒离去，当日的工作则同样遭遇了挫折——一群匪徒闯入研究中心，试图将研制中的缩微飞行器芯片夺走，研究员为了保住芯片，将已经进入缩微状态的塔克和飞行器注入了一名路人杰克（马丁·肖特 Martin Short 饰）的屁股，杰克是一名神经过敏的超市收银员，塔克在杰克的身体内部游走，帮助其躲过匪徒的追踪后返回研究中心求助，然而中心为利益决定放弃杰克体内的塔克，二人无奈只得自救，他们向莉迪亚求助，想要在塔克的氧气耗尽前夺回被抢走的芯片，令塔克恢复原来的大小……