Enter the Fat Dragon

Fei lung gwoh gong is a movie starring Donnie Yen, Niki Chow, and Teresa Mo. A cop is assigned to a case of escorting a criminal to Japan while dealing with relationship problems, and his enormous change in appearance as a result of...
After being dumped by his fiancé, heartbroken Hong Kong police officer Fallon Zhu gains 200+ pounds. His superiors demote him to the job of escorting convicts to Japan. When a convict in his custody mysteriously dies, he must team up with citizen Thor to solve the mystery.