On March 18, Zheng Kai posted a photo with "Justice League" director Zach Schneider on his personal social platform, it is understood that Zach Schneider's director's cut version of "Justice League" was launched on hbo max today, and Zheng Kai's role as the fourth generation of atomic man Cai Ryan in the film will appear in the film.
It is reported that in May 2020, Zach Schneider exposed Zheng Kai's stills in the movie "Justice League" on social platforms, with the text: "This will be very interesting."