What is batman fancasts?

Batman fancasts are a popular trend among fans of the DC comics superhero. A fancast is a list of actors that fans would like to see in a particular role, in this case, as Batman. Fans make their choices based on the actor's physical appearance, acting ability, and similarity to the source material. Some of the most popular actors that fans have fancast as Batman include Armie Hammer, Robert Pattinson, Jon Hamm, and Idris Elba. These fancasts are purely speculative and not official casting decisions made by filmmakers, studios, or distributors.