Watch VoirFilms. This powerful and inspiring feature-length documentary describes the incredible "Japanese journey" of Olympic judo champion Lukáš Krpálek against the backdrop of the unknown story and confessions of his greatest rival. Gentle Fighter is a film for anyone looking for inspiration in stories about willpower and overcoming obstacles. It is a film that shows that true strength does not come from the size of muscles and the power of tendons, but mainly from the mindset.