The live action debut of Damian Wayne, Bruce Wayne's biological son.
Alan Ritchson, Jensen Ackles, and Winston Duke expressed interest in taking on the role of Bruce Wayne/Batman for this movie. Ackles was previously considered to play Batman in Batman vs Superman: A Origem da Justiça (2016), and ended up voicing the character in Batman: The Long Halloween (2021), Legião de super-heróis (2023), Liga da Justiça: Mundo Bélico (2023), and the multi-part adaptation of Crisis on Infinite Earths.
James Gunn stated he has been in numerous talks with Matt Reeves, and that he will allow Reeves to have full creative freedom of his version of the Batman, while a majority of their discussions revolve around not making their Batman projects too similar.
Rumors spread that Academy Award-winning screenwriter John Logan was going to write the film's script. However, this was debunked by James Gunn.
The film is based on Grant Morrison's run of Batman which introduced Damian Wayne.