Xu Xiaodong, known as "Mad Dog," has made a significant impact not only in the world of mixed martial arts but also in the realm of film, particularly with his notable documentary "Wuhan - Feb. 2020." Released in 2020, this film captures the harrowing events surrounding the early days of the COVID-19 outbreak in Wuhan, offering a visceral and unfiltered glimpse into the crisis. Collectors prize this release for its historical relevance and the raw footage that provides insights into a pivotal moment in modern history. Beyond his martial arts prowess, Xu's outspoken nature and willingness to confront controversial topics have made him a compelling figure in film. His unique perspective and the blend of action and documentary storytelling resonate with collectors who appreciate films that not only entertain but also provoke thought. As a pioneer in both the martial arts community and as a filmmaker, Xu Xiaodong’s works are becoming essential additions to any serious collector's library, particularly those focusing on contemporary Chinese cinema and cultural commentary.