2006 film by Herman Yau

When 17-year-old Makoto Konno gains the ability to, quite literally, "leap" backwards through time, she immediately sets about improving her grades and preventing personal mishaps. However, she soon realises that changing the past isn't as simple as it seems, and eventually, will have to rely on her new powers to shape the future of herself and her friends.

晓诗（王心凌 饰）是微笑Pasta意大利面馆的宝贝女儿，她喜欢学长阿哲（Gino 饰）不但不喜欢她，还对她下了“恋情永远不会满三个月”的魔咒。阿哲的哥哥何群（张栋梁 饰）和他关系并不好，因为喜欢音乐投身乐坛，成为今天的歌坛小天王。何群新歌发布会当天，女友Rita（赵虹乔 饰）被何哲带走，晓诗在街头看到现任男友劈腿。两人伤心地在街头偶遇，躲避狗仔队跟踪时不小心撞上晓诗而意外接吻，狗仔队见机拍下来。第二天，“小天王劈腿，街头拥吻秘密情人”的“亲吻照”上了头版新闻。经纪人为挽救危机，将计就计，宣布晓诗才是何群的女友。绯闻一闹，父亲何议长勒令何群转学，不料却转到晓诗就读的大学。这下可好，以为不会见面的绯闻男女变成同班同学，何群必须经常跟晓诗扮恩爱，还必须面对同校的阿哲和Rita。
深爱Rita的何群，始终暗恋阿哲的晓诗，这复杂矛盾的情愫，该如何解开……