Max Zhang (張晉), Juju Chan (陳鈺芸), former UFC champion, Anderson Silva and the film director, Fruit Chan (陳果) promoted new film, The Invisible Dragon (九龍不敗) at Dragon Centre on 15th June 2019. As Max had fighting scene with Anderson, he looked forward to it prior to the shooting and believed Anderson was a skilful fighter upon watching his competitions online. When asked if he used greater force in the movie, Max replied he needed to beat Anderson’s chest and hit his forehead accidentally, but he did not faint and his elbow was in great pain.