逆者

On the surface, Jeff is a success. At the height of his career as a financial analyst, Jeff bankrolls an annual salary in the 7 digits. But deep down, he lives a numbing existence, feeling empty and devoid of purpose. One day, Jeff decides to walk away from it all. Leaving behind a cushy job, trading in briefcase for boxers, Jeff trains to become a Mixed Martial Artist. A year ...

《逆者》的基础信息更偏纪录片，简介里的“On the surface, Jeff is a success”提供了第一层判断，剩下可以再看主创和年代。