影片故事发生在朝鲜战场上，美军的一间野战医院，军医们整日不物正业，不是跟护士们大情骂悄，就是相互挖苦陷害。在种种笑料和喋喋不休的斗嘴中，影片懒散地展示着朝鲜战争中的美国军人，最终这场闹剧在一声“操他妈的军队”的恶骂中结束……
香港小混混乐爷（吴镇宇 饰）因欠下50万高利贷躲到了内地的小宝（彭波 饰）家；小宝因爱看黑帮片成天盼着去香港见大明星、入黑社会。为了弄到钱，乐爷策划了俩人行窃某集团董事长王世雄。不料入室后遭遇了冒到“东南亚第一杀手”的查尔斯（林雪 饰），查尔斯为还赌债受雇杀人，而雇 他杀人的有几拨人马。王世雄的女儿王诗宜（刘颖 饰）在被绑架之时，阴错阳差地被乐爷所救，但她失去记忆、智商低下。纯真而依赖的女孩情怀，令本想用王诗宜进行敲诈的乐爷迟迟未行动。就在乐爷想到了一个既可以拿到钱、又可以保护王诗宜的办法时，幕后真凶及其手下田基（王太利 饰）找到了他们，而杀手查尔斯也找上门来…
艾蜜莉（卡梅隆·迪亚兹 Cameron Diaz 饰）和马特（杰米·福克斯 Jamie Foxx 饰）这对夫妻档原是中情局探员，退隐多年后，他们养儿育女的平凡生活恐将不保，随着身份曝光，夫妻俩这下子必须重出江湖。
In this scathing and subversive social comedy, life in post riot Los Angeles is dissected under the sardonic eye of John Boyz, an unemployed thirty nothing flounderer on Venice Beach who is trying to figure out what to do with his life. John can't be bothered with apathy, but no matter how much he wants to help people, he is too immobilized to do anything useful. Haunted by chronic insomnia and impending sense of doom, all he can do is watch, and John is an avid observer. Through his voyeuristic binoculars, he struggles to make sense of all the alienation and disaffection he sees in his neighborhood. In his journal he meticulously chronicles the mundane down to steadfast march of ants across his kitchen counter. John is desperately trying to keep one meaningless day from blending into next. He compulsively watches homemade videos of LA riots looking for a clue. But everywhere around him the city's social fabric is coming apart at the seams, and now it is John Boys's own threadbare ...
在一间教学素质低下的学校里，有一个不成文的传统：学生们凡是遇到了争执，都不能告诉老师家长，只能自己用拳头解决。石头（谢霆锋 饰）是最能打的一个同学，一次帮助富家子Edward（冯德伦 饰）解围，彼此成为朋友，二人也因此得罪了学校里的好战分子。阿凤（容祖儿 饰）一直暗恋既帅气学习有出色的Edward，而Edward认为学生最紧要是学习，会考时间逼近，Edward便义务帮助石头与阿凤补习。由于家境富有，Edward竟然在考试当天被绑架了，石头决心把他救回……
