正在休假的警察Darren（郭富城）与好友兼搭档Alex（王力宏）一起出席后者女友的时装发布会时，目睹一桩谋杀案，两人立刻停止休假投入到了破案中。调查时，两人发现案件异常复杂，牵涉到大陆南方某城的一个庞大的犯罪组织，赶赴到该城后，两人结识为调查一宗涉及国际犯罪组织的案件而深入虎穴当卧底的国际刑警Norika（藤原纪香）。为引出大鱼，Norika铤而走险假扮模特儿走秀，Darren与Alex则在暗中观察，当等来目标人物与之发生枪战时，Alex不幸中弹身亡。伤心至极的Darren发誓要将黑帮铲除，他和Norika也渐渐生出感情。

电影讲述了陷入中年危机的二人转演员刘光，面对婚姻破灭和残酷的现实借酒消愁，某天醒来成为一名拥有超能力的特工，谁料妻子段美娟也隐藏特工身份。

本片是在1969年举行了四天的伍德斯托克音乐节的大型纪录片，曾荣获翌年的金像奖最佳纪录片奖。在那个嬉皮当道，摇滚有理的年代，这一场高达四十万人参与的户外马拉松演唱会，汇集了当时最走红和最有影响力的流行乐团和个人轮番表演，台下则尽情发挥无拘无束的时代气息。观众除了可以欣赏到很多精彩的音乐表演外，也可透过此片认识那个已经逝去的美好时代。导演迈克尔．沃德利采用多银幕手法来呈现这场盛会的逼人气势，当时刚出道的马丁．斯科塞斯也协助剪辑工作，使本片在映象上的表现与音乐同样出色。

This is a really interesting film about how large the universe is and how powers of ten become so drastically distant.It starts out by showing a couple at a picnic in Chicago. It then shows an overhead shot a meter up of the man lying down on the picnic blanket. It then proceeds to zoom out by increasing the distance by a power of ten every ten seconds; 10 to the first meters, 10 to the second meters, 10 to the third meters, and so on.Before long the viewer is above the earth, then the solar system, then the galaxy, then much of the visible universe. The viewer is projected back forward by decreasing the powers of ten every two seconds.After a while the picnic scene is displayed again, but it doesn't stop there. The view returns to the regular speed and goes into the negative powers; ten to the negative first meter, ten to the negative second meter, and so on. The viewer is zoomed into the man's hand, and ends up zooming into a single proton in an atom.