James Gunn says his biggest challenge with the DC Universe right now is figuring out how to get Batman into it.

With 2025’s upcoming Superman film set to kick off the DCU in earnest, James Gunn has explained how the new universe might co-exist with the world established in Matt Reeves’ The Batman. The Batman’s “Epic Crime Saga” universe introduced fans to several new versions of iconic villains from the comics,

Batman’s my biggest issue in all of DC right now, personally,” Gunn told Rolling Stone. “And it’s not—I’m not writing Batman, but I am working with the writer of Batman and trying to get it right, because he’s incredibly important to DC,