CGI has been used in film and television for decades, but recent advances in computer technology have made it more realistic and accessible than ever before. CGI allows filmmakers to create and animate characters, environments, and special effects that would be impossible or impractical to create in the real world. This opens up new possibilities for storytelling and visual effects, and allows filmmakers to bring their most ambitious ideas to life.

Game engines, such as the Unreal Engine, are also becoming increasingly popular in film and television production. These engines are designed for creating interactive, real-time graphics and are used in the development of video games. However, they are also being used in film and television to create special effects and virtual environments. The Unreal Engine, in particular, has been used in a number of high-profile productions, including the Disney+ series "The Mandalorian" and the film "Tenet."

Overall, the future of filmmaking looks bright, with new technologies and techniques emerging all the time. CGI and game engines are just two of the many exciting developments that are changing the way films and television shows are made, and it will be interesting to see what the future holds for the industry.